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Finding the Fourth Proportional to 625,140.12, 936,154.98 and 437,271.96

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Solution

The fourth proportional to 625,140.12, 936,154.98 and 437,271.96 is: 654,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,140.12 : 936,154.98 = 437,271.96 : x
  2. Step 2: Convert to fraction form
    625,140.12/936,154.98 = 437,271.96/x
  3. Step 3: Cross multiply
    625,140.12x = 936,154.98 × 437,271.96
  4. Step 4: Simplify right side
    625,140.12x = 409,354,322,968.36
  5. Step 5: Solve for x
    x = 409,354,322,968.36/625,140.12
  6. Step 6: Final answer
    x = 654,820.11

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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.