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Finding the Fourth Proportional to 972,326.88, 1,455,995.52 and 672,393.60

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Solution

The fourth proportional to 972,326.88, 1,455,995.52 and 672,393.60 is: 1,006,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,326.88 : 1,455,995.52 = 672,393.60 : x
  2. Step 2: Convert to fraction form
    972,326.88/1,455,995.52 = 672,393.60/x
  3. Step 3: Cross multiply
    972,326.88x = 1,455,995.52 × 672,393.60
  4. Step 4: Simplify right side
    972,326.88x = 979,002,069,276.67
  5. Step 5: Solve for x
    x = 979,002,069,276.67/972,326.88
  6. Step 6: Final answer
    x = 1,006,865.17

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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.