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Finding the Fourth Proportional to 575,549.60, 863,324.40 and 542,890.40

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Solution

The fourth proportional to 575,549.60, 863,324.40 and 542,890.40 is: 814,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,549.60 : 863,324.40 = 542,890.40 : x
  2. Step 2: Convert to fraction form
    575,549.60/863,324.40 = 542,890.40/x
  3. Step 3: Cross multiply
    575,549.60x = 863,324.40 × 542,890.40
  4. Step 4: Simplify right side
    575,549.60x = 468,690,528,845.76
  5. Step 5: Solve for x
    x = 468,690,528,845.76/575,549.60
  6. Step 6: Final answer
    x = 814,335.60

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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.