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Finding the Fourth Proportional to 703,902.68, 972,187.61 and 477,154.52

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Solution

The fourth proportional to 703,902.68, 972,187.61 and 477,154.52 is: 659,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,902.68 : 972,187.61 = 477,154.52 : x
  2. Step 2: Convert to fraction form
    703,902.68/972,187.61 = 477,154.52/x
  3. Step 3: Cross multiply
    703,902.68x = 972,187.61 × 477,154.52
  4. Step 4: Simplify right side
    703,902.68x = 463,883,705,152.79
  5. Step 5: Solve for x
    x = 463,883,705,152.79/703,902.68
  6. Step 6: Final answer
    x = 659,016.82

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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.