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Finding the Fourth Proportional to 904,905, 1,248,768.90 and 502,497

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Solution

The fourth proportional to 904,905, 1,248,768.90 and 502,497 is: 693,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,905 : 1,248,768.90 = 502,497 : x
  2. Step 2: Convert to fraction form
    904,905/1,248,768.90 = 502,497/x
  3. Step 3: Cross multiply
    904,905x = 1,248,768.90 × 502,497
  4. Step 4: Simplify right side
    904,905x = 627,502,625,943.30
  5. Step 5: Solve for x
    x = 627,502,625,943.30/904,905
  6. Step 6: Final answer
    x = 693,445.86

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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.