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Finding the Fourth Proportional to 608,044.20, 912,066.30 and 538,060.20

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Solution

The fourth proportional to 608,044.20, 912,066.30 and 538,060.20 is: 807,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,044.20 : 912,066.30 = 538,060.20 : x
  2. Step 2: Convert to fraction form
    608,044.20/912,066.30 = 538,060.20/x
  3. Step 3: Cross multiply
    608,044.20x = 912,066.30 × 538,060.20
  4. Step 4: Simplify right side
    608,044.20x = 490,746,575,791.26
  5. Step 5: Solve for x
    x = 490,746,575,791.26/608,044.20
  6. Step 6: Final answer
    x = 807,090.30

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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.