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Finding the Fourth Proportional to 700,329.15, 966,441.51 and 394,404.30

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Solution

The fourth proportional to 700,329.15, 966,441.51 and 394,404.30 is: 544,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,329.15 : 966,441.51 = 394,404.30 : x
  2. Step 2: Convert to fraction form
    700,329.15/966,441.51 = 394,404.30/x
  3. Step 3: Cross multiply
    700,329.15x = 966,441.51 × 394,404.30
  4. Step 4: Simplify right side
    700,329.15x = 381,168,687,242.49
  5. Step 5: Solve for x
    x = 381,168,687,242.49/700,329.15
  6. Step 6: Final answer
    x = 544,270.77

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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.