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Finding the Fourth Proportional to 548,841.90, 821,707.65 and 492,854.70

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Solution

The fourth proportional to 548,841.90, 821,707.65 and 492,854.70 is: 737,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,841.90 : 821,707.65 = 492,854.70 : x
  2. Step 2: Convert to fraction form
    548,841.90/821,707.65 = 492,854.70/x
  3. Step 3: Cross multiply
    548,841.90x = 821,707.65 × 492,854.70
  4. Step 4: Simplify right side
    548,841.90x = 404,982,477,328.46
  5. Step 5: Solve for x
    x = 404,982,477,328.46/548,841.90
  6. Step 6: Final answer
    x = 737,885.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.