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Finding the Fourth Proportional to 425,925.90, 638,346.15 and 226,341.90

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Solution

The fourth proportional to 425,925.90, 638,346.15 and 226,341.90 is: 339,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,925.90 : 638,346.15 = 226,341.90 : x
  2. Step 2: Convert to fraction form
    425,925.90/638,346.15 = 226,341.90/x
  3. Step 3: Cross multiply
    425,925.90x = 638,346.15 × 226,341.90
  4. Step 4: Simplify right side
    425,925.90x = 144,484,480,448.69
  5. Step 5: Solve for x
    x = 144,484,480,448.69/425,925.90
  6. Step 6: Final answer
    x = 339,224.45

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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.