Home / 926,407.21-1,278,150.52-518,444.23

Finding the Fourth Proportional to 926,407.21, 1,278,150.52 and 518,444.23

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Solution

The fourth proportional to 926,407.21, 1,278,150.52 and 518,444.23 is: 715,289.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,407.21 : 1,278,150.52 = 518,444.23 : x
  2. Step 2: Convert to fraction form
    926,407.21/1,278,150.52 = 518,444.23/x
  3. Step 3: Cross multiply
    926,407.21x = 1,278,150.52 × 518,444.23
  4. Step 4: Simplify right side
    926,407.21x = 662,649,756,377.90
  5. Step 5: Solve for x
    x = 662,649,756,377.90/926,407.21
  6. Step 6: Final answer
    x = 715,289.94

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Double scale
Find fourth proportional to 926,408.21, 1,278,151.89 and 518,445.23
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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.