Home / 419,228.90-578,348.96-283,219.10

Finding the Fourth Proportional to 419,228.90, 578,348.96 and 283,219.10

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Solution

The fourth proportional to 419,228.90, 578,348.96 and 283,219.10 is: 390,716.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,228.90 : 578,348.96 = 283,219.10 : x
  2. Step 2: Convert to fraction form
    419,228.90/578,348.96 = 283,219.10/x
  3. Step 3: Cross multiply
    419,228.90x = 578,348.96 × 283,219.10
  4. Step 4: Simplify right side
    419,228.90x = 163,799,471,937.14
  5. Step 5: Solve for x
    x = 163,799,471,937.14/419,228.90
  6. Step 6: Final answer
    x = 390,716.08

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1.5x scale

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.