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Finding the Fourth Proportional to 611,526.70, 917,290.05 and 237,306.70

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Solution

The fourth proportional to 611,526.70, 917,290.05 and 237,306.70 is: 355,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,526.70 : 917,290.05 = 237,306.70 : x
  2. Step 2: Convert to fraction form
    611,526.70/917,290.05 = 237,306.70/x
  3. Step 3: Cross multiply
    611,526.70x = 917,290.05 × 237,306.70
  4. Step 4: Simplify right side
    611,526.70x = 217,679,074,708.34
  5. Step 5: Solve for x
    x = 217,679,074,708.34/611,526.70
  6. Step 6: Final answer
    x = 355,960.05

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Double scale
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Similar ratio
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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.