Home / 1,278,587.20-1,917,880.80-532,091.20

Finding the Fourth Proportional to 1,278,587.20, 1,917,880.80 and 532,091.20

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Solution

The fourth proportional to 1,278,587.20, 1,917,880.80 and 532,091.20 is: 798,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,587.20 : 1,917,880.80 = 532,091.20 : x
  2. Step 2: Convert to fraction form
    1,278,587.20/1,917,880.80 = 532,091.20/x
  3. Step 3: Cross multiply
    1,278,587.20x = 1,917,880.80 × 532,091.20
  4. Step 4: Simplify right side
    1,278,587.20x = 1,020,487,496,328.96
  5. Step 5: Solve for x
    x = 1,020,487,496,328.96/1,278,587.20
  6. Step 6: Final answer
    x = 798,136.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.