Home / 690,821.60-1,036,232.40-410,194.40

Finding the Fourth Proportional to 690,821.60, 1,036,232.40 and 410,194.40

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Solution

The fourth proportional to 690,821.60, 1,036,232.40 and 410,194.40 is: 615,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,821.60 : 1,036,232.40 = 410,194.40 : x
  2. Step 2: Convert to fraction form
    690,821.60/1,036,232.40 = 410,194.40/x
  3. Step 3: Cross multiply
    690,821.60x = 1,036,232.40 × 410,194.40
  4. Step 4: Simplify right side
    690,821.60x = 425,056,727,578.56
  5. Step 5: Solve for x
    x = 425,056,727,578.56/690,821.60
  6. Step 6: Final answer
    x = 615,291.60

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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.