Home / 938,363.60-1,407,545.40-432,923.60

Finding the Fourth Proportional to 938,363.60, 1,407,545.40 and 432,923.60

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Solution

The fourth proportional to 938,363.60, 1,407,545.40 and 432,923.60 is: 649,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,363.60 : 1,407,545.40 = 432,923.60 : x
  2. Step 2: Convert to fraction form
    938,363.60/1,407,545.40 = 432,923.60/x
  3. Step 3: Cross multiply
    938,363.60x = 1,407,545.40 × 432,923.60
  4. Step 4: Simplify right side
    938,363.60x = 609,359,621,731.44
  5. Step 5: Solve for x
    x = 609,359,621,731.44/938,363.60
  6. Step 6: Final answer
    x = 649,385.40

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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.