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Finding the Fourth Proportional to 532,402.20, 798,603.30 and 266,203.80

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Solution

The fourth proportional to 532,402.20, 798,603.30 and 266,203.80 is: 399,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,402.20 : 798,603.30 = 266,203.80 : x
  2. Step 2: Convert to fraction form
    532,402.20/798,603.30 = 266,203.80/x
  3. Step 3: Cross multiply
    532,402.20x = 798,603.30 × 266,203.80
  4. Step 4: Simplify right side
    532,402.20x = 212,591,233,152.54
  5. Step 5: Solve for x
    x = 212,591,233,152.54/532,402.20
  6. Step 6: Final answer
    x = 399,305.70

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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.