Home / 886,028.40-1,329,042.60-620,089.20

Finding the Fourth Proportional to 886,028.40, 1,329,042.60 and 620,089.20

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Solution

The fourth proportional to 886,028.40, 1,329,042.60 and 620,089.20 is: 930,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,028.40 : 1,329,042.60 = 620,089.20 : x
  2. Step 2: Convert to fraction form
    886,028.40/1,329,042.60 = 620,089.20/x
  3. Step 3: Cross multiply
    886,028.40x = 1,329,042.60 × 620,089.20
  4. Step 4: Simplify right side
    886,028.40x = 824,124,962,599.92
  5. Step 5: Solve for x
    x = 824,124,962,599.92/886,028.40
  6. Step 6: Final answer
    x = 930,133.80

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Double scale
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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.