Home / 626,545.10-939,161.55-247,319.30

Finding the Fourth Proportional to 626,545.10, 939,161.55 and 247,319.30

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Solution

The fourth proportional to 626,545.10, 939,161.55 and 247,319.30 is: 370,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,545.10 : 939,161.55 = 247,319.30 : x
  2. Step 2: Convert to fraction form
    626,545.10/939,161.55 = 247,319.30/x
  3. Step 3: Cross multiply
    626,545.10x = 939,161.55 × 247,319.30
  4. Step 4: Simplify right side
    626,545.10x = 232,272,777,132.92
  5. Step 5: Solve for x
    x = 232,272,777,132.92/626,545.10
  6. Step 6: Final answer
    x = 370,719.96

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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.