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Finding the Fourth Proportional to 684,063.09, 943,977.63 and 373,959.78

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Solution

The fourth proportional to 684,063.09, 943,977.63 and 373,959.78 is: 516,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,063.09 : 943,977.63 = 373,959.78 : x
  2. Step 2: Convert to fraction form
    684,063.09/943,977.63 = 373,959.78/x
  3. Step 3: Cross multiply
    684,063.09x = 943,977.63 × 373,959.78
  4. Step 4: Simplify right side
    684,063.09x = 353,009,663,522.18
  5. Step 5: Solve for x
    x = 353,009,663,522.18/684,063.09
  6. Step 6: Final answer
    x = 516,048.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.