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Finding the Fourth Proportional to 641,295.08, 885,013.30 and 354,810.52

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Solution

The fourth proportional to 641,295.08, 885,013.30 and 354,810.52 is: 489,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,295.08 : 885,013.30 = 354,810.52 : x
  2. Step 2: Convert to fraction form
    641,295.08/885,013.30 = 354,810.52/x
  3. Step 3: Cross multiply
    641,295.08x = 885,013.30 × 354,810.52
  4. Step 4: Simplify right side
    641,295.08x = 314,012,029,179.92
  5. Step 5: Solve for x
    x = 314,012,029,179.92/641,295.08
  6. Step 6: Final answer
    x = 489,652.95

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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.