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Finding the Fourth Proportional to 675,643.48, 932,399.84 and 369,746.98

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Solution

The fourth proportional to 675,643.48, 932,399.84 and 369,746.98 is: 510,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,643.48 : 932,399.84 = 369,746.98 : x
  2. Step 2: Convert to fraction form
    675,643.48/932,399.84 = 369,746.98/x
  3. Step 3: Cross multiply
    675,643.48x = 932,399.84 × 369,746.98
  4. Step 4: Simplify right side
    675,643.48x = 344,752,023,585.85
  5. Step 5: Solve for x
    x = 344,752,023,585.85/675,643.48
  6. Step 6: Final answer
    x = 510,257.31

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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.