Home / 926,390.16-1,278,127.11-518,427.18

Finding the Fourth Proportional to 926,390.16, 1,278,127.11 and 518,427.18

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Solution

The fourth proportional to 926,390.16, 1,278,127.11 and 518,427.18 is: 715,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,390.16 : 1,278,127.11 = 518,427.18 : x
  2. Step 2: Convert to fraction form
    926,390.16/1,278,127.11 = 518,427.18/x
  3. Step 3: Cross multiply
    926,390.16x = 1,278,127.11 × 518,427.18
  4. Step 4: Simplify right side
    926,390.16x = 662,615,833,318.85
  5. Step 5: Solve for x
    x = 662,615,833,318.85/926,390.16
  6. Step 6: Final answer
    x = 715,266.48

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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.