Home / 926,407.80-1,278,151.34-518,444.82

Finding the Fourth Proportional to 926,407.80, 1,278,151.34 and 518,444.82

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Solution

The fourth proportional to 926,407.80, 1,278,151.34 and 518,444.82 is: 715,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,407.80 : 1,278,151.34 = 518,444.82 : x
  2. Step 2: Convert to fraction form
    926,407.80/1,278,151.34 = 518,444.82/x
  3. Step 3: Cross multiply
    926,407.80x = 1,278,151.34 × 518,444.82
  4. Step 4: Simplify right side
    926,407.80x = 662,650,938,806.84
  5. Step 5: Solve for x
    x = 662,650,938,806.84/926,407.80
  6. Step 6: Final answer
    x = 715,290.76

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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.