Home / 926,147.18-1,278,039.66-518,300.84

Finding the Fourth Proportional to 926,147.18, 1,278,039.66 and 518,300.84

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Solution

The fourth proportional to 926,147.18, 1,278,039.66 and 518,300.84 is: 715,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,147.18 : 1,278,039.66 = 518,300.84 : x
  2. Step 2: Convert to fraction form
    926,147.18/1,278,039.66 = 518,300.84/x
  3. Step 3: Cross multiply
    926,147.18x = 1,278,039.66 × 518,300.84
  4. Step 4: Simplify right side
    926,147.18x = 662,409,029,331.31
  5. Step 5: Solve for x
    x = 662,409,029,331.31/926,147.18
  6. Step 6: Final answer
    x = 715,230.84

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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.