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Finding the Fourth Proportional to 713,181.72, 984,181.98 and 386,487.72

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Solution

The fourth proportional to 713,181.72, 984,181.98 and 386,487.72 is: 533,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,181.72 : 984,181.98 = 386,487.72 : x
  2. Step 2: Convert to fraction form
    713,181.72/984,181.98 = 386,487.72/x
  3. Step 3: Cross multiply
    713,181.72x = 984,181.98 × 386,487.72
  4. Step 4: Simplify right side
    713,181.72x = 380,374,249,515.29
  5. Step 5: Solve for x
    x = 380,374,249,515.29/713,181.72
  6. Step 6: Final answer
    x = 533,348.29

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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.