Home / 1,187,666.20-1,781,499.30-440,003.80

Finding the Fourth Proportional to 1,187,666.20, 1,781,499.30 and 440,003.80

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Solution

The fourth proportional to 1,187,666.20, 1,781,499.30 and 440,003.80 is: 660,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,666.20 : 1,781,499.30 = 440,003.80 : x
  2. Step 2: Convert to fraction form
    1,187,666.20/1,781,499.30 = 440,003.80/x
  3. Step 3: Cross multiply
    1,187,666.20x = 1,781,499.30 × 440,003.80
  4. Step 4: Simplify right side
    1,187,666.20x = 783,866,461,697.34
  5. Step 5: Solve for x
    x = 783,866,461,697.34/1,187,666.20
  6. Step 6: Final answer
    x = 660,005.70

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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.