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Finding the Fourth Proportional to 504,002.10, 755,128.35 and 472,509.30

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Solution

The fourth proportional to 504,002.10, 755,128.35 and 472,509.30 is: 707,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,002.10 : 755,128.35 = 472,509.30 : x
  2. Step 2: Convert to fraction form
    504,002.10/755,128.35 = 472,509.30/x
  3. Step 3: Cross multiply
    504,002.10x = 755,128.35 × 472,509.30
  4. Step 4: Simplify right side
    504,002.10x = 356,805,168,068.66
  5. Step 5: Solve for x
    x = 356,805,168,068.66/504,002.10
  6. Step 6: Final answer
    x = 707,943.81

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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.