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Finding the Fourth Proportional to 610,932.96, 916,756.72 and 255,916.96

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Solution

The fourth proportional to 610,932.96, 916,756.72 and 255,916.96 is: 384,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,932.96 : 916,756.72 = 255,916.96 : x
  2. Step 2: Convert to fraction form
    610,932.96/916,756.72 = 255,916.96/x
  3. Step 3: Cross multiply
    610,932.96x = 916,756.72 × 255,916.96
  4. Step 4: Simplify right side
    610,932.96x = 234,613,592,841.97
  5. Step 5: Solve for x
    x = 234,613,592,841.97/610,932.96
  6. Step 6: Final answer
    x = 384,025.10

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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.