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Finding the Fourth Proportional to 703,901.11, 972,185.43 and 477,152.95

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Solution

The fourth proportional to 703,901.11, 972,185.43 and 477,152.95 is: 659,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,901.11 : 972,185.43 = 477,152.95 : x
  2. Step 2: Convert to fraction form
    703,901.11/972,185.43 = 477,152.95/x
  3. Step 3: Cross multiply
    703,901.11x = 972,185.43 × 477,152.95
  4. Step 4: Simplify right side
    703,901.11x = 463,881,145,711.23
  5. Step 5: Solve for x
    x = 463,881,145,711.23/703,901.11
  6. Step 6: Final answer
    x = 659,014.65

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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.