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Finding the Fourth Proportional to 552,139.70, 829,084.35 and 403,423.70

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Solution

The fourth proportional to 552,139.70, 829,084.35 and 403,423.70 is: 605,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,139.70 : 829,084.35 = 403,423.70 : x
  2. Step 2: Convert to fraction form
    552,139.70/829,084.35 = 403,423.70/x
  3. Step 3: Cross multiply
    552,139.70x = 829,084.35 × 403,423.70
  4. Step 4: Simplify right side
    552,139.70x = 334,472,276,089.10
  5. Step 5: Solve for x
    x = 334,472,276,089.10/552,139.70
  6. Step 6: Final answer
    x = 605,774.73

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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.