Home / 899,188.76-1,240,866.01-491,281.85

Finding the Fourth Proportional to 899,188.76, 1,240,866.01 and 491,281.85

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Solution

The fourth proportional to 899,188.76, 1,240,866.01 and 491,281.85 is: 677,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,188.76 : 1,240,866.01 = 491,281.85 : x
  2. Step 2: Convert to fraction form
    899,188.76/1,240,866.01 = 491,281.85/x
  3. Step 3: Cross multiply
    899,188.76x = 1,240,866.01 × 491,281.85
  4. Step 4: Simplify right side
    899,188.76x = 609,614,948,994.92
  5. Step 5: Solve for x
    x = 609,614,948,994.92/899,188.76
  6. Step 6: Final answer
    x = 677,961.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.