Home / 419,084.28-578,594.70-288,484.92

Finding the Fourth Proportional to 419,084.28, 578,594.70 and 288,484.92

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Solution

The fourth proportional to 419,084.28, 578,594.70 and 288,484.92 is: 398,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,084.28 : 578,594.70 = 288,484.92 : x
  2. Step 2: Convert to fraction form
    419,084.28/578,594.70 = 288,484.92/x
  3. Step 3: Cross multiply
    419,084.28x = 578,594.70 × 288,484.92
  4. Step 4: Simplify right side
    419,084.28x = 166,915,845,741.92
  5. Step 5: Solve for x
    x = 166,915,845,741.92/419,084.28
  6. Step 6: Final answer
    x = 398,287.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.