Home / 876,349.80-1,314,135.90-403,180.20

Finding the Fourth Proportional to 876,349.80, 1,314,135.90 and 403,180.20

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Solution

The fourth proportional to 876,349.80, 1,314,135.90 and 403,180.20 is: 604,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,349.80 : 1,314,135.90 = 403,180.20 : x
  2. Step 2: Convert to fraction form
    876,349.80/1,314,135.90 = 403,180.20/x
  3. Step 3: Cross multiply
    876,349.80x = 1,314,135.90 × 403,180.20
  4. Step 4: Simplify right side
    876,349.80x = 529,833,574,989.18
  5. Step 5: Solve for x
    x = 529,833,574,989.18/876,349.80
  6. Step 6: Final answer
    x = 604,591.43

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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.