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Finding the Fourth Proportional to 418,459.74, 577,462.28 and 237,188.36

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Solution

The fourth proportional to 418,459.74, 577,462.28 and 237,188.36 is: 327,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,459.74 : 577,462.28 = 237,188.36 : x
  2. Step 2: Convert to fraction form
    418,459.74/577,462.28 = 237,188.36/x
  3. Step 3: Cross multiply
    418,459.74x = 577,462.28 × 237,188.36
  4. Step 4: Simplify right side
    418,459.74x = 136,967,331,155.06
  5. Step 5: Solve for x
    x = 136,967,331,155.06/418,459.74
  6. Step 6: Final answer
    x = 327,313.04

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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.