Home / 805,454.60-1,111,498.89-442,875.92

Finding the Fourth Proportional to 805,454.60, 1,111,498.89 and 442,875.92

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Solution

The fourth proportional to 805,454.60, 1,111,498.89 and 442,875.92 is: 611,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,454.60 : 1,111,498.89 = 442,875.92 : x
  2. Step 2: Convert to fraction form
    805,454.60/1,111,498.89 = 442,875.92/x
  3. Step 3: Cross multiply
    805,454.60x = 1,111,498.89 × 442,875.92
  4. Step 4: Simplify right side
    805,454.60x = 492,256,093,487.73
  5. Step 5: Solve for x
    x = 492,256,093,487.73/805,454.60
  6. Step 6: Final answer
    x = 611,153.12

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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.