Home / 926,989.74-1,279,140.12-519,034.86

Finding the Fourth Proportional to 926,989.74, 1,279,140.12 and 519,034.86

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Solution

The fourth proportional to 926,989.74, 1,279,140.12 and 519,034.86 is: 716,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,989.74 : 1,279,140.12 = 519,034.86 : x
  2. Step 2: Convert to fraction form
    926,989.74/1,279,140.12 = 519,034.86/x
  3. Step 3: Cross multiply
    926,989.74x = 1,279,140.12 × 519,034.86
  4. Step 4: Simplify right side
    926,989.74x = 663,918,313,104.58
  5. Step 5: Solve for x
    x = 663,918,313,104.58/926,989.74
  6. Step 6: Final answer
    x = 716,208.91

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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.