Home / 656,312.10-984,905.55-301,143.30

Finding the Fourth Proportional to 656,312.10, 984,905.55 and 301,143.30

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Solution

The fourth proportional to 656,312.10, 984,905.55 and 301,143.30 is: 451,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,312.10 : 984,905.55 = 301,143.30 : x
  2. Step 2: Convert to fraction form
    656,312.10/984,905.55 = 301,143.30/x
  3. Step 3: Cross multiply
    656,312.10x = 984,905.55 × 301,143.30
  4. Step 4: Simplify right side
    656,312.10x = 296,597,707,515.32
  5. Step 5: Solve for x
    x = 296,597,707,515.32/656,312.10
  6. Step 6: Final answer
    x = 451,915.65

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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.