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Finding the Fourth Proportional to 439,437.77, 606,440.45 and 248,439.77

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Solution

The fourth proportional to 439,437.77, 606,440.45 and 248,439.77 is: 342,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,437.77 : 606,440.45 = 248,439.77 : x
  2. Step 2: Convert to fraction form
    439,437.77/606,440.45 = 248,439.77/x
  3. Step 3: Cross multiply
    439,437.77x = 606,440.45 × 248,439.77
  4. Step 4: Simplify right side
    439,437.77x = 150,663,925,916.70
  5. Step 5: Solve for x
    x = 150,663,925,916.70/439,437.77
  6. Step 6: Final answer
    x = 342,856.11

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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.