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Finding the Fourth Proportional to 284,063.23, 392,015.43 and 156,747.04

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Solution

The fourth proportional to 284,063.23, 392,015.43 and 156,747.04 is: 216,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,063.23 : 392,015.43 = 156,747.04 : x
  2. Step 2: Convert to fraction form
    284,063.23/392,015.43 = 156,747.04/x
  3. Step 3: Cross multiply
    284,063.23x = 392,015.43 × 156,747.04
  4. Step 4: Simplify right side
    284,063.23x = 61,447,258,286.83
  5. Step 5: Solve for x
    x = 61,447,258,286.83/284,063.23
  6. Step 6: Final answer
    x = 216,315.42

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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.