Home / 578,774.40-867,643.20-379,190.40

Finding the Fourth Proportional to 578,774.40, 867,643.20 and 379,190.40

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Solution

The fourth proportional to 578,774.40, 867,643.20 and 379,190.40 is: 568,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,774.40 : 867,643.20 = 379,190.40 : x
  2. Step 2: Convert to fraction form
    578,774.40/867,643.20 = 379,190.40/x
  3. Step 3: Cross multiply
    578,774.40x = 867,643.20 × 379,190.40
  4. Step 4: Simplify right side
    578,774.40x = 329,001,972,065.28
  5. Step 5: Solve for x
    x = 329,001,972,065.28/578,774.40
  6. Step 6: Final answer
    x = 568,445.96

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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.