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Finding the Fourth Proportional to 303,592.68, 418,981.86 and 176,308.20

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Solution

The fourth proportional to 303,592.68, 418,981.86 and 176,308.20 is: 243,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,592.68 : 418,981.86 = 176,308.20 : x
  2. Step 2: Convert to fraction form
    303,592.68/418,981.86 = 176,308.20/x
  3. Step 3: Cross multiply
    303,592.68x = 418,981.86 × 176,308.20
  4. Step 4: Simplify right side
    303,592.68x = 73,869,937,569.25
  5. Step 5: Solve for x
    x = 73,869,937,569.25/303,592.68
  6. Step 6: Final answer
    x = 243,319.23

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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.