Home / 892,887.40-1,339,331.10-519,639.40

Finding the Fourth Proportional to 892,887.40, 1,339,331.10 and 519,639.40

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Solution

The fourth proportional to 892,887.40, 1,339,331.10 and 519,639.40 is: 779,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,887.40 : 1,339,331.10 = 519,639.40 : x
  2. Step 2: Convert to fraction form
    892,887.40/1,339,331.10 = 519,639.40/x
  3. Step 3: Cross multiply
    892,887.40x = 1,339,331.10 × 519,639.40
  4. Step 4: Simplify right side
    892,887.40x = 695,969,209,205.34
  5. Step 5: Solve for x
    x = 695,969,209,205.34/892,887.40
  6. Step 6: Final answer
    x = 779,459.10

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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.