Home / 691,627.60-1,037,441.40-411,000.40

Finding the Fourth Proportional to 691,627.60, 1,037,441.40 and 411,000.40

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Solution

The fourth proportional to 691,627.60, 1,037,441.40 and 411,000.40 is: 616,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,627.60 : 1,037,441.40 = 411,000.40 : x
  2. Step 2: Convert to fraction form
    691,627.60/1,037,441.40 = 411,000.40/x
  3. Step 3: Cross multiply
    691,627.60x = 1,037,441.40 × 411,000.40
  4. Step 4: Simplify right side
    691,627.60x = 426,388,830,376.56
  5. Step 5: Solve for x
    x = 426,388,830,376.56/691,627.60
  6. Step 6: Final answer
    x = 616,500.60

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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.