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Finding the Fourth Proportional to 1,318,332.98, 1,819,225.85 and 737,443.98

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Solution

The fourth proportional to 1,318,332.98, 1,819,225.85 and 737,443.98 is: 1,017,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,332.98 : 1,819,225.85 = 737,443.98 : x
  2. Step 2: Convert to fraction form
    1,318,332.98/1,819,225.85 = 737,443.98/x
  3. Step 3: Cross multiply
    1,318,332.98x = 1,819,225.85 × 737,443.98
  4. Step 4: Simplify right side
    1,318,332.98x = 1,341,577,147,655.66
  5. Step 5: Solve for x
    x = 1,341,577,147,655.66/1,318,332.98
  6. Step 6: Final answer
    x = 1,017,631.48

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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.