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Finding the Fourth Proportional to 426,398.28, 588,430.50 and 235,412.04

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Solution

The fourth proportional to 426,398.28, 588,430.50 and 235,412.04 is: 324,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,398.28 : 588,430.50 = 235,412.04 : x
  2. Step 2: Convert to fraction form
    426,398.28/588,430.50 = 235,412.04/x
  3. Step 3: Cross multiply
    426,398.28x = 588,430.50 × 235,412.04
  4. Step 4: Simplify right side
    426,398.28x = 138,523,624,403.22
  5. Step 5: Solve for x
    x = 138,523,624,403.22/426,398.28
  6. Step 6: Final answer
    x = 324,869.10

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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.