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Finding the Fourth Proportional to 474,920.80, 712,381.20 and 297,973.60

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Solution

The fourth proportional to 474,920.80, 712,381.20 and 297,973.60 is: 446,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,920.80 : 712,381.20 = 297,973.60 : x
  2. Step 2: Convert to fraction form
    474,920.80/712,381.20 = 297,973.60/x
  3. Step 3: Cross multiply
    474,920.80x = 712,381.20 × 297,973.60
  4. Step 4: Simplify right side
    474,920.80x = 212,270,790,736.32
  5. Step 5: Solve for x
    x = 212,270,790,736.32/474,920.80
  6. Step 6: Final answer
    x = 446,960.40

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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.