Home / 1,205,600.80-1,808,401.20-319,136.80

Finding the Fourth Proportional to 1,205,600.80, 1,808,401.20 and 319,136.80

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Solution

The fourth proportional to 1,205,600.80, 1,808,401.20 and 319,136.80 is: 478,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,600.80 : 1,808,401.20 = 319,136.80 : x
  2. Step 2: Convert to fraction form
    1,205,600.80/1,808,401.20 = 319,136.80/x
  3. Step 3: Cross multiply
    1,205,600.80x = 1,808,401.20 × 319,136.80
  4. Step 4: Simplify right side
    1,205,600.80x = 577,127,372,084.16
  5. Step 5: Solve for x
    x = 577,127,372,084.16/1,205,600.80
  6. Step 6: Final answer
    x = 478,705.20

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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.