Home / 519,848.12-780,180.44-267,118.40

Finding the Fourth Proportional to 519,848.12, 780,180.44 and 267,118.40

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Solution

The fourth proportional to 519,848.12, 780,180.44 and 267,118.40 is: 400,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,848.12 : 780,180.44 = 267,118.40 : x
  2. Step 2: Convert to fraction form
    519,848.12/780,180.44 = 267,118.40/x
  3. Step 3: Cross multiply
    519,848.12x = 780,180.44 × 267,118.40
  4. Step 4: Simplify right side
    519,848.12x = 208,400,550,844.10
  5. Step 5: Solve for x
    x = 208,400,550,844.10/519,848.12
  6. Step 6: Final answer
    x = 400,887.38

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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.