Home / 866,205.80-1,297,340.40-547,341.20

Finding the Fourth Proportional to 866,205.80, 1,297,340.40 and 547,341.20

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Solution

The fourth proportional to 866,205.80, 1,297,340.40 and 547,341.20 is: 819,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,205.80 : 1,297,340.40 = 547,341.20 : x
  2. Step 2: Convert to fraction form
    866,205.80/1,297,340.40 = 547,341.20/x
  3. Step 3: Cross multiply
    866,205.80x = 1,297,340.40 × 547,341.20
  4. Step 4: Simplify right side
    866,205.80x = 710,087,851,344.48
  5. Step 5: Solve for x
    x = 710,087,851,344.48/866,205.80
  6. Step 6: Final answer
    x = 819,768.06

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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.