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Finding the Fourth Proportional to 370,463.76, 511,214.76 and 209,325.60

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Solution

The fourth proportional to 370,463.76, 511,214.76 and 209,325.60 is: 288,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,463.76 : 511,214.76 = 209,325.60 : x
  2. Step 2: Convert to fraction form
    370,463.76/511,214.76 = 209,325.60/x
  3. Step 3: Cross multiply
    370,463.76x = 511,214.76 × 209,325.60
  4. Step 4: Simplify right side
    370,463.76x = 107,010,336,365.86
  5. Step 5: Solve for x
    x = 107,010,336,365.86/370,463.76
  6. Step 6: Final answer
    x = 288,855.07

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1.5x scale

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.