Home / 658,869.60-988,304.40-577,513.20

Finding the Fourth Proportional to 658,869.60, 988,304.40 and 577,513.20

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Solution

The fourth proportional to 658,869.60, 988,304.40 and 577,513.20 is: 866,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,869.60 : 988,304.40 = 577,513.20 : x
  2. Step 2: Convert to fraction form
    658,869.60/988,304.40 = 577,513.20/x
  3. Step 3: Cross multiply
    658,869.60x = 988,304.40 × 577,513.20
  4. Step 4: Simplify right side
    658,869.60x = 570,758,836,618.08
  5. Step 5: Solve for x
    x = 570,758,836,618.08/658,869.60
  6. Step 6: Final answer
    x = 866,269.80

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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.