Home / 887,143.80-1,328,966.10-531,100.20

Finding the Fourth Proportional to 887,143.80, 1,328,966.10 and 531,100.20

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Solution

The fourth proportional to 887,143.80, 1,328,966.10 and 531,100.20 is: 795,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,143.80 : 1,328,966.10 = 531,100.20 : x
  2. Step 2: Convert to fraction form
    887,143.80/1,328,966.10 = 531,100.20/x
  3. Step 3: Cross multiply
    887,143.80x = 1,328,966.10 × 531,100.20
  4. Step 4: Simplify right side
    887,143.80x = 705,814,161,503.22
  5. Step 5: Solve for x
    x = 705,814,161,503.22/887,143.80
  6. Step 6: Final answer
    x = 795,602.88

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1.5x scale

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.