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Finding the Fourth Proportional to 571,657.27, 857,818.10 and 256,114.18

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Solution

The fourth proportional to 571,657.27, 857,818.10 and 256,114.18 is: 384,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,657.27 : 857,818.10 = 256,114.18 : x
  2. Step 2: Convert to fraction form
    571,657.27/857,818.10 = 256,114.18/x
  3. Step 3: Cross multiply
    571,657.27x = 857,818.10 × 256,114.18
  4. Step 4: Simplify right side
    571,657.27x = 219,699,377,129.96
  5. Step 5: Solve for x
    x = 219,699,377,129.96/571,657.27
  6. Step 6: Final answer
    x = 384,320.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.