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Finding the Fourth Proportional to 532,307.40, 798,461.10 and 488,761.80

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Solution

The fourth proportional to 532,307.40, 798,461.10 and 488,761.80 is: 733,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,307.40 : 798,461.10 = 488,761.80 : x
  2. Step 2: Convert to fraction form
    532,307.40/798,461.10 = 488,761.80/x
  3. Step 3: Cross multiply
    532,307.40x = 798,461.10 × 488,761.80
  4. Step 4: Simplify right side
    532,307.40x = 390,257,284,465.98
  5. Step 5: Solve for x
    x = 390,257,284,465.98/532,307.40
  6. Step 6: Final answer
    x = 733,142.70

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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.