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Finding the Fourth Proportional to 514,358.80, 711,169.60 and 450,513.40

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Solution

The fourth proportional to 514,358.80, 711,169.60 and 450,513.40 is: 622,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,358.80 : 711,169.60 = 450,513.40 : x
  2. Step 2: Convert to fraction form
    514,358.80/711,169.60 = 450,513.40/x
  3. Step 3: Cross multiply
    514,358.80x = 711,169.60 × 450,513.40
  4. Step 4: Simplify right side
    514,358.80x = 320,391,434,472.64
  5. Step 5: Solve for x
    x = 320,391,434,472.64/514,358.80
  6. Step 6: Final answer
    x = 622,894.82

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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.