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Finding the Fourth Proportional to 972,221.40, 1,458,332.10 and 972,221.40

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Solution

The fourth proportional to 972,221.40, 1,458,332.10 and 972,221.40 is: 1,458,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,221.40 : 1,458,332.10 = 972,221.40 : x
  2. Step 2: Convert to fraction form
    972,221.40/1,458,332.10 = 972,221.40/x
  3. Step 3: Cross multiply
    972,221.40x = 1,458,332.10 × 972,221.40
  4. Step 4: Simplify right side
    972,221.40x = 1,417,821,675,926.94
  5. Step 5: Solve for x
    x = 1,417,821,675,926.94/972,221.40
  6. Step 6: Final answer
    x = 1,458,332.10

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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.