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Finding the Fourth Proportional to 284,241.54, 392,243.04 and 156,914.40

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Solution

The fourth proportional to 284,241.54, 392,243.04 and 156,914.40 is: 216,536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,241.54 : 392,243.04 = 156,914.40 : x
  2. Step 2: Convert to fraction form
    284,241.54/392,243.04 = 156,914.40/x
  3. Step 3: Cross multiply
    284,241.54x = 392,243.04 × 156,914.40
  4. Step 4: Simplify right side
    284,241.54x = 61,548,581,275.78
  5. Step 5: Solve for x
    x = 61,548,581,275.78/284,241.54
  6. Step 6: Final answer
    x = 216,536.19

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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.