Home / 915,727.20-1,374,000.40-416,834.40

Finding the Fourth Proportional to 915,727.20, 1,374,000.40 and 416,834.40

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Solution

The fourth proportional to 915,727.20, 1,374,000.40 and 416,834.40 is: 625,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,727.20 : 1,374,000.40 = 416,834.40 : x
  2. Step 2: Convert to fraction form
    915,727.20/1,374,000.40 = 416,834.40/x
  3. Step 3: Cross multiply
    915,727.20x = 1,374,000.40 × 416,834.40
  4. Step 4: Simplify right side
    915,727.20x = 572,730,632,333.76
  5. Step 5: Solve for x
    x = 572,730,632,333.76/915,727.20
  6. Step 6: Final answer
    x = 625,438.05

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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.