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Finding the Fourth Proportional to 576,044.40, 864,066.60 and 339,265.20

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Solution

The fourth proportional to 576,044.40, 864,066.60 and 339,265.20 is: 508,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,044.40 : 864,066.60 = 339,265.20 : x
  2. Step 2: Convert to fraction form
    576,044.40/864,066.60 = 339,265.20/x
  3. Step 3: Cross multiply
    576,044.40x = 864,066.60 × 339,265.20
  4. Step 4: Simplify right side
    576,044.40x = 293,147,727,862.32
  5. Step 5: Solve for x
    x = 293,147,727,862.32/576,044.40
  6. Step 6: Final answer
    x = 508,897.80

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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.