Home / 926,890.10-1,390,335.15-394,234.10

Finding the Fourth Proportional to 926,890.10, 1,390,335.15 and 394,234.10

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Solution

The fourth proportional to 926,890.10, 1,390,335.15 and 394,234.10 is: 591,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,890.10 : 1,390,335.15 = 394,234.10 : x
  2. Step 2: Convert to fraction form
    926,890.10/1,390,335.15 = 394,234.10/x
  3. Step 3: Cross multiply
    926,890.10x = 1,390,335.15 × 394,234.10
  4. Step 4: Simplify right side
    926,890.10x = 548,117,526,558.62
  5. Step 5: Solve for x
    x = 548,117,526,558.62/926,890.10
  6. Step 6: Final answer
    x = 591,351.15

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Half scale
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Double scale
Find fourth proportional to 926,891.10, 1,390,336.65 and 394,235.10
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.