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Finding the Fourth Proportional to 385,217.92, 531,746.94 and 344,856.88

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Solution

The fourth proportional to 385,217.92, 531,746.94 and 344,856.88 is: 476,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,217.92 : 531,746.94 = 344,856.88 : x
  2. Step 2: Convert to fraction form
    385,217.92/531,746.94 = 344,856.88/x
  3. Step 3: Cross multiply
    385,217.92x = 531,746.94 × 344,856.88
  4. Step 4: Simplify right side
    385,217.92x = 183,376,590,677.95
  5. Step 5: Solve for x
    x = 183,376,590,677.95/385,217.92
  6. Step 6: Final answer
    x = 476,033.39

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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.