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Finding the Fourth Proportional to 622,089.10, 934,117.80 and 472,498.30

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Solution

The fourth proportional to 622,089.10, 934,117.80 and 472,498.30 is: 709,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,089.10 : 934,117.80 = 472,498.30 : x
  2. Step 2: Convert to fraction form
    622,089.10/934,117.80 = 472,498.30/x
  3. Step 3: Cross multiply
    622,089.10x = 934,117.80 × 472,498.30
  4. Step 4: Simplify right side
    622,089.10x = 441,369,072,499.74
  5. Step 5: Solve for x
    x = 441,369,072,499.74/622,089.10
  6. Step 6: Final answer
    x = 709,494.95

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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.