Home / 683,931.60-1,025,897.40-628,819.20

Finding the Fourth Proportional to 683,931.60, 1,025,897.40 and 628,819.20

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Solution

The fourth proportional to 683,931.60, 1,025,897.40 and 628,819.20 is: 943,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,931.60 : 1,025,897.40 = 628,819.20 : x
  2. Step 2: Convert to fraction form
    683,931.60/1,025,897.40 = 628,819.20/x
  3. Step 3: Cross multiply
    683,931.60x = 1,025,897.40 × 628,819.20
  4. Step 4: Simplify right side
    683,931.60x = 645,103,982,350.08
  5. Step 5: Solve for x
    x = 645,103,982,350.08/683,931.60
  6. Step 6: Final answer
    x = 943,228.80

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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.