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Finding the Fourth Proportional to 469,240.40, 703,854.20 and 153,707.60

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Solution

The fourth proportional to 469,240.40, 703,854.20 and 153,707.60 is: 230,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,240.40 : 703,854.20 = 153,707.60 : x
  2. Step 2: Convert to fraction form
    469,240.40/703,854.20 = 153,707.60/x
  3. Step 3: Cross multiply
    469,240.40x = 703,854.20 × 153,707.60
  4. Step 4: Simplify right side
    469,240.40x = 108,187,739,831.92
  5. Step 5: Solve for x
    x = 108,187,739,831.92/469,240.40
  6. Step 6: Final answer
    x = 230,559.30

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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.