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Finding the Fourth Proportional to 704,185.92, 971,769.96 and 381,903.12

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Solution

The fourth proportional to 704,185.92, 971,769.96 and 381,903.12 is: 527,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,185.92 : 971,769.96 = 381,903.12 : x
  2. Step 2: Convert to fraction form
    704,185.92/971,769.96 = 381,903.12/x
  3. Step 3: Cross multiply
    704,185.92x = 971,769.96 × 381,903.12
  4. Step 4: Simplify right side
    704,185.92x = 371,121,979,646.28
  5. Step 5: Solve for x
    x = 371,121,979,646.28/704,185.92
  6. Step 6: Final answer
    x = 527,022.72

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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.