Home / 805,128.76-1,111,080.48-442,584.08

Finding the Fourth Proportional to 805,128.76, 1,111,080.48 and 442,584.08

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Solution

The fourth proportional to 805,128.76, 1,111,080.48 and 442,584.08 is: 610,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,128.76 : 1,111,080.48 = 442,584.08 : x
  2. Step 2: Convert to fraction form
    805,128.76/1,111,080.48 = 442,584.08/x
  3. Step 3: Cross multiply
    805,128.76x = 1,111,080.48 × 442,584.08
  4. Step 4: Simplify right side
    805,128.76x = 491,746,532,046.76
  5. Step 5: Solve for x
    x = 491,746,532,046.76/805,128.76
  6. Step 6: Final answer
    x = 610,767.56

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Double scale
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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.