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Finding the Fourth Proportional to 328,503.60, 453,267.27 and 188,775.18

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Solution

The fourth proportional to 328,503.60, 453,267.27 and 188,775.18 is: 260,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,503.60 : 453,267.27 = 188,775.18 : x
  2. Step 2: Convert to fraction form
    328,503.60/453,267.27 = 188,775.18/x
  3. Step 3: Cross multiply
    328,503.60x = 453,267.27 × 188,775.18
  4. Step 4: Simplify right side
    328,503.60x = 85,565,610,482.36
  5. Step 5: Solve for x
    x = 85,565,610,482.36/328,503.60
  6. Step 6: Final answer
    x = 260,470.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.