Home / 626,947.40-940,421.10-451,112.60

Finding the Fourth Proportional to 626,947.40, 940,421.10 and 451,112.60

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Solution

The fourth proportional to 626,947.40, 940,421.10 and 451,112.60 is: 676,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,947.40 : 940,421.10 = 451,112.60 : x
  2. Step 2: Convert to fraction form
    626,947.40/940,421.10 = 451,112.60/x
  3. Step 3: Cross multiply
    626,947.40x = 940,421.10 × 451,112.60
  4. Step 4: Simplify right side
    626,947.40x = 424,235,807,515.86
  5. Step 5: Solve for x
    x = 424,235,807,515.86/626,947.40
  6. Step 6: Final answer
    x = 676,668.90

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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.