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Finding the Fourth Proportional to 590,646.60, 885,969.90 and 432,016.20

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Solution

The fourth proportional to 590,646.60, 885,969.90 and 432,016.20 is: 648,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,646.60 : 885,969.90 = 432,016.20 : x
  2. Step 2: Convert to fraction form
    590,646.60/885,969.90 = 432,016.20/x
  3. Step 3: Cross multiply
    590,646.60x = 885,969.90 × 432,016.20
  4. Step 4: Simplify right side
    590,646.60x = 382,753,349,512.38
  5. Step 5: Solve for x
    x = 382,753,349,512.38/590,646.60
  6. Step 6: Final answer
    x = 648,024.30

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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.