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Finding the Fourth Proportional to 418,627.12, 577,693.40 and 237,356.40

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Solution

The fourth proportional to 418,627.12, 577,693.40 and 237,356.40 is: 327,545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,627.12 : 577,693.40 = 237,356.40 : x
  2. Step 2: Convert to fraction form
    418,627.12/577,693.40 = 237,356.40/x
  3. Step 3: Cross multiply
    418,627.12x = 577,693.40 × 237,356.40
  4. Step 4: Simplify right side
    418,627.12x = 137,119,225,727.76
  5. Step 5: Solve for x
    x = 137,119,225,727.76/418,627.12
  6. Step 6: Final answer
    x = 327,545.01

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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.