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Finding the Fourth Proportional to 418,507.56, 577,555.92 and 232,244.28

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Solution

The fourth proportional to 418,507.56, 577,555.92 and 232,244.28 is: 320,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,507.56 : 577,555.92 = 232,244.28 : x
  2. Step 2: Convert to fraction form
    418,507.56/577,555.92 = 232,244.28/x
  3. Step 3: Cross multiply
    418,507.56x = 577,555.92 × 232,244.28
  4. Step 4: Simplify right side
    418,507.56x = 134,134,058,800.14
  5. Step 5: Solve for x
    x = 134,134,058,800.14/418,507.56
  6. Step 6: Final answer
    x = 320,505.70

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1.5x scale

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.