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Finding the Fourth Proportional to 507,809.70, 761,714.55 and 484,481.70

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Solution

The fourth proportional to 507,809.70, 761,714.55 and 484,481.70 is: 726,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,809.70 : 761,714.55 = 484,481.70 : x
  2. Step 2: Convert to fraction form
    507,809.70/761,714.55 = 484,481.70/x
  3. Step 3: Cross multiply
    507,809.70x = 761,714.55 × 484,481.70
  4. Step 4: Simplify right side
    507,809.70x = 369,036,760,098.74
  5. Step 5: Solve for x
    x = 369,036,760,098.74/507,809.70
  6. Step 6: Final answer
    x = 726,722.55

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Similar ratio
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1.5x scale

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.