Home / 652,806.20-977,897.10-440,229.80

Finding the Fourth Proportional to 652,806.20, 977,897.10 and 440,229.80

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Solution

The fourth proportional to 652,806.20, 977,897.10 and 440,229.80 is: 659,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,806.20 : 977,897.10 = 440,229.80 : x
  2. Step 2: Convert to fraction form
    652,806.20/977,897.10 = 440,229.80/x
  3. Step 3: Cross multiply
    652,806.20x = 977,897.10 × 440,229.80
  4. Step 4: Simplify right side
    652,806.20x = 430,499,444,753.58
  5. Step 5: Solve for x
    x = 430,499,444,753.58/652,806.20
  6. Step 6: Final answer
    x = 659,459.80

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Double scale
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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.