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Finding the Fourth Proportional to 438,099.76, 604,578.32 and 236,895.76

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Solution

The fourth proportional to 438,099.76, 604,578.32 and 236,895.76 is: 326,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,099.76 : 604,578.32 = 236,895.76 : x
  2. Step 2: Convert to fraction form
    438,099.76/604,578.32 = 236,895.76/x
  3. Step 3: Cross multiply
    438,099.76x = 604,578.32 × 236,895.76
  4. Step 4: Simplify right side
    438,099.76x = 143,222,040,595.92
  5. Step 5: Solve for x
    x = 143,222,040,595.92/438,099.76
  6. Step 6: Final answer
    x = 326,916.50

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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.