Home / 547,711.80-821,567.70-193,126.20

Finding the Fourth Proportional to 547,711.80, 821,567.70 and 193,126.20

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Solution

The fourth proportional to 547,711.80, 821,567.70 and 193,126.20 is: 289,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,711.80 : 821,567.70 = 193,126.20 : x
  2. Step 2: Convert to fraction form
    547,711.80/821,567.70 = 193,126.20/x
  3. Step 3: Cross multiply
    547,711.80x = 821,567.70 × 193,126.20
  4. Step 4: Simplify right side
    547,711.80x = 158,666,247,943.74
  5. Step 5: Solve for x
    x = 158,666,247,943.74/547,711.80
  6. Step 6: Final answer
    x = 289,689.30

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Similar ratio
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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.