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Finding the Fourth Proportional to 648,188.80, 972,574.80 and 227,766.40

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Solution

The fourth proportional to 648,188.80, 972,574.80 and 227,766.40 is: 341,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,188.80 : 972,574.80 = 227,766.40 : x
  2. Step 2: Convert to fraction form
    648,188.80/972,574.80 = 227,766.40/x
  3. Step 3: Cross multiply
    648,188.80x = 972,574.80 × 227,766.40
  4. Step 4: Simplify right side
    648,188.80x = 221,519,860,926.72
  5. Step 5: Solve for x
    x = 221,519,860,926.72/648,188.80
  6. Step 6: Final answer
    x = 341,752.07

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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.