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Finding the Fourth Proportional to 540,680.85, 746,109.54 and 298,948.95

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Solution

The fourth proportional to 540,680.85, 746,109.54 and 298,948.95 is: 412,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,680.85 : 746,109.54 = 298,948.95 : x
  2. Step 2: Convert to fraction form
    540,680.85/746,109.54 = 298,948.95/x
  3. Step 3: Cross multiply
    540,680.85x = 746,109.54 × 298,948.95
  4. Step 4: Simplify right side
    540,680.85x = 223,048,663,567.98
  5. Step 5: Solve for x
    x = 223,048,663,567.98/540,680.85
  6. Step 6: Final answer
    x = 412,532.95

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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.