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Finding the Fourth Proportional to 529,574.40, 794,354.69 and 130,218.63

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Solution

The fourth proportional to 529,574.40, 794,354.69 and 130,218.63 is: 195,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,574.40 : 794,354.69 = 130,218.63 : x
  2. Step 2: Convert to fraction form
    529,574.40/794,354.69 = 130,218.63/x
  3. Step 3: Cross multiply
    529,574.40x = 794,354.69 × 130,218.63
  4. Step 4: Simplify right side
    529,574.40x = 103,439,779,465.88
  5. Step 5: Solve for x
    x = 103,439,779,465.88/529,574.40
  6. Step 6: Final answer
    x = 195,326.25

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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.