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Finding the Fourth Proportional to 475,975.20, 715,129.20 and 357,877.20

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Solution

The fourth proportional to 475,975.20, 715,129.20 and 357,877.20 is: 537,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,975.20 : 715,129.20 = 357,877.20 : x
  2. Step 2: Convert to fraction form
    475,975.20/715,129.20 = 357,877.20/x
  3. Step 3: Cross multiply
    475,975.20x = 715,129.20 × 357,877.20
  4. Step 4: Simplify right side
    475,975.20x = 255,928,435,734.24
  5. Step 5: Solve for x
    x = 255,928,435,734.24/475,975.20
  6. Step 6: Final answer
    x = 537,692.80

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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.