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Finding the Fourth Proportional to 619,707.60, 927,811.80 and 619,707.60

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Solution

The fourth proportional to 619,707.60, 927,811.80 and 619,707.60 is: 927,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,707.60 : 927,811.80 = 619,707.60 : x
  2. Step 2: Convert to fraction form
    619,707.60/927,811.80 = 619,707.60/x
  3. Step 3: Cross multiply
    619,707.60x = 927,811.80 × 619,707.60
  4. Step 4: Simplify right side
    619,707.60x = 574,972,023,829.68
  5. Step 5: Solve for x
    x = 574,972,023,829.68/619,707.60
  6. Step 6: Final answer
    x = 927,811.80

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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.