Home / 643,734.77-888,295.29-382,044.95

Finding the Fourth Proportional to 643,734.77, 888,295.29 and 382,044.95

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Solution

The fourth proportional to 643,734.77, 888,295.29 and 382,044.95 is: 527,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,734.77 : 888,295.29 = 382,044.95 : x
  2. Step 2: Convert to fraction form
    643,734.77/888,295.29 = 382,044.95/x
  3. Step 3: Cross multiply
    643,734.77x = 888,295.29 × 382,044.95
  4. Step 4: Simplify right side
    643,734.77x = 339,368,725,211.81
  5. Step 5: Solve for x
    x = 339,368,725,211.81/643,734.77
  6. Step 6: Final answer
    x = 527,187.20

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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.