Home / 707,532,678.70-1,060,291,248.45-521,851,129.90

Finding the Fourth Proportional to 707,532,678.70, 1,060,291,248.45 and 521,851,129.90

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Solution

The fourth proportional to 707,532,678.70, 1,060,291,248.45 and 521,851,129.90 is: 782,033,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,532,678.70 : 1,060,291,248.45 = 521,851,129.90 : x
  2. Step 2: Convert to fraction form
    707,532,678.70/1,060,291,248.45 = 521,851,129.90/x
  3. Step 3: Cross multiply
    707,532,678.70x = 1,060,291,248.45 × 521,851,129.90
  4. Step 4: Simplify right side
    707,532,678.70x = 553,314,186,026,714,112
  5. Step 5: Solve for x
    x = 553,314,186,026,714,112/707,532,678.70
  6. Step 6: Final answer
    x = 782,033,399.56

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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.