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Finding the Fourth Proportional to 590,963.40, 886,445.10 and 545,344.20

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Solution

The fourth proportional to 590,963.40, 886,445.10 and 545,344.20 is: 818,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,963.40 : 886,445.10 = 545,344.20 : x
  2. Step 2: Convert to fraction form
    590,963.40/886,445.10 = 545,344.20/x
  3. Step 3: Cross multiply
    590,963.40x = 886,445.10 × 545,344.20
  4. Step 4: Simplify right side
    590,963.40x = 483,417,693,903.42
  5. Step 5: Solve for x
    x = 483,417,693,903.42/590,963.40
  6. Step 6: Final answer
    x = 818,016.30

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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.