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Finding the Fourth Proportional to 296,318.16, 408,915.90 and 160,349.13

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Solution

The fourth proportional to 296,318.16, 408,915.90 and 160,349.13 is: 221,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,318.16 : 408,915.90 = 160,349.13 : x
  2. Step 2: Convert to fraction form
    296,318.16/408,915.90 = 160,349.13/x
  3. Step 3: Cross multiply
    296,318.16x = 408,915.90 × 160,349.13
  4. Step 4: Simplify right side
    296,318.16x = 65,569,308,808.17
  5. Step 5: Solve for x
    x = 65,569,308,808.17/296,318.16
  6. Step 6: Final answer
    x = 221,280.09

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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.