Home / 419,416.18-578,773.67-238,104.32

Finding the Fourth Proportional to 419,416.18, 578,773.67 and 238,104.32

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Solution

The fourth proportional to 419,416.18, 578,773.67 and 238,104.32 is: 328,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,416.18 : 578,773.67 = 238,104.32 : x
  2. Step 2: Convert to fraction form
    419,416.18/578,773.67 = 238,104.32/x
  3. Step 3: Cross multiply
    419,416.18x = 578,773.67 × 238,104.32
  4. Step 4: Simplify right side
    419,416.18x = 137,808,507,044.86
  5. Step 5: Solve for x
    x = 137,808,507,044.86/419,416.18
  6. Step 6: Final answer
    x = 328,572.23

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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.