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Finding the Fourth Proportional to 296,318.35, 408,916.20 and 160,349.32

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Solution

The fourth proportional to 296,318.35, 408,916.20 and 160,349.32 is: 221,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,318.35 : 408,916.20 = 160,349.32 : x
  2. Step 2: Convert to fraction form
    296,318.35/408,916.20 = 160,349.32/x
  3. Step 3: Cross multiply
    296,318.35x = 408,916.20 × 160,349.32
  4. Step 4: Simplify right side
    296,318.35x = 65,569,434,186.00
  5. Step 5: Solve for x
    x = 65,569,434,186.00/296,318.35
  6. Step 6: Final answer
    x = 221,280.37

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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.