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Finding the Fourth Proportional to 610,187,714.80, 915,281,572.20 and 543,301,673.20

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Solution

The fourth proportional to 610,187,714.80, 915,281,572.20 and 543,301,673.20 is: 814,952,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,187,714.80 : 915,281,572.20 = 543,301,673.20 : x
  2. Step 2: Convert to fraction form
    610,187,714.80/915,281,572.20 = 543,301,673.20/x
  3. Step 3: Cross multiply
    610,187,714.80x = 915,281,572.20 × 543,301,673.20
  4. Step 4: Simplify right side
    610,187,714.80x = 497,274,009,625,386,688
  5. Step 5: Solve for x
    x = 497,274,009,625,386,688/610,187,714.80
  6. Step 6: Final answer
    x = 814,952,509.80

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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.