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Finding the Fourth Proportional to 418,459.80, 577,484.46 and 237,190.20

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Solution

The fourth proportional to 418,459.80, 577,484.46 and 237,190.20 is: 327,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,459.80 : 577,484.46 = 237,190.20 : x
  2. Step 2: Convert to fraction form
    418,459.80/577,484.46 = 237,190.20/x
  3. Step 3: Cross multiply
    418,459.80x = 577,484.46 × 237,190.20
  4. Step 4: Simplify right side
    418,459.80x = 136,973,654,564.29
  5. Step 5: Solve for x
    x = 136,973,654,564.29/418,459.80
  6. Step 6: Final answer
    x = 327,328.11

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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.