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Finding the Fourth Proportional to 675,641.45, 932,385.16 and 369,717.87

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Solution

The fourth proportional to 675,641.45, 932,385.16 and 369,717.87 is: 510,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,641.45 : 932,385.16 = 369,717.87 : x
  2. Step 2: Convert to fraction form
    675,641.45/932,385.16 = 369,717.87/x
  3. Step 3: Cross multiply
    675,641.45x = 932,385.16 × 369,717.87
  4. Step 4: Simplify right side
    675,641.45x = 344,719,453,043.85
  5. Step 5: Solve for x
    x = 344,719,453,043.85/675,641.45
  6. Step 6: Final answer
    x = 510,210.63

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1.5x scale

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.