Home / 817,412.76-1,128,185.66-541,283.76

Finding the Fourth Proportional to 817,412.76, 1,128,185.66 and 541,283.76

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Solution

The fourth proportional to 817,412.76, 1,128,185.66 and 541,283.76 is: 747,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,412.76 : 1,128,185.66 = 541,283.76 : x
  2. Step 2: Convert to fraction form
    817,412.76/1,128,185.66 = 541,283.76/x
  3. Step 3: Cross multiply
    817,412.76x = 1,128,185.66 × 541,283.76
  4. Step 4: Simplify right side
    817,412.76x = 610,668,576,022.88
  5. Step 5: Solve for x
    x = 610,668,576,022.88/817,412.76
  6. Step 6: Final answer
    x = 747,074.92

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Half scale
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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.