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Finding the Fourth Proportional to 555,807.74, 767,279.16 and 372,362.18

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Solution

The fourth proportional to 555,807.74, 767,279.16 and 372,362.18 is: 514,037.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,807.74 : 767,279.16 = 372,362.18 : x
  2. Step 2: Convert to fraction form
    555,807.74/767,279.16 = 372,362.18/x
  3. Step 3: Cross multiply
    555,807.74x = 767,279.16 × 372,362.18
  4. Step 4: Simplify right side
    555,807.74x = 285,705,740,686.17
  5. Step 5: Solve for x
    x = 285,705,740,686.17/555,807.74
  6. Step 6: Final answer
    x = 514,037.00

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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.