Home / 661,748.20-992,622.30-346,301.80

Finding the Fourth Proportional to 661,748.20, 992,622.30 and 346,301.80

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Solution

The fourth proportional to 661,748.20, 992,622.30 and 346,301.80 is: 519,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,748.20 : 992,622.30 = 346,301.80 : x
  2. Step 2: Convert to fraction form
    661,748.20/992,622.30 = 346,301.80/x
  3. Step 3: Cross multiply
    661,748.20x = 992,622.30 × 346,301.80
  4. Step 4: Simplify right side
    661,748.20x = 343,746,889,210.14
  5. Step 5: Solve for x
    x = 343,746,889,210.14/661,748.20
  6. Step 6: Final answer
    x = 519,452.70

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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.