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Finding the Fourth Proportional to 610,701.57, 916,115.22 and 211,341.70

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Solution

The fourth proportional to 610,701.57, 916,115.22 and 211,341.70 is: 317,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,701.57 : 916,115.22 = 211,341.70 : x
  2. Step 2: Convert to fraction form
    610,701.57/916,115.22 = 211,341.70/x
  3. Step 3: Cross multiply
    610,701.57x = 916,115.22 × 211,341.70
  4. Step 4: Simplify right side
    610,701.57x = 193,613,347,990.67
  5. Step 5: Solve for x
    x = 193,613,347,990.67/610,701.57
  6. Step 6: Final answer
    x = 317,034.31

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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.