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Finding the Fourth Proportional to 579,944,473.80, 869,916,710.70 and 196,992,025.80

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Solution

The fourth proportional to 579,944,473.80, 869,916,710.70 and 196,992,025.80 is: 295,488,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,944,473.80 : 869,916,710.70 = 196,992,025.80 : x
  2. Step 2: Convert to fraction form
    579,944,473.80/869,916,710.70 = 196,992,025.80/x
  3. Step 3: Cross multiply
    579,944,473.80x = 869,916,710.70 × 196,992,025.80
  4. Step 4: Simplify right side
    579,944,473.80x = 171,366,655,118,065,568
  5. Step 5: Solve for x
    x = 171,366,655,118,065,568/579,944,473.80
  6. Step 6: Final answer
    x = 295,488,038.70

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Double scale
Find fourth proportional to 579,944,474.80, 869,916,712.20 and 196,992,026.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.