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Finding the Fourth Proportional to 591,161.60, 886,569.60 and 212,038.40

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Solution

The fourth proportional to 591,161.60, 886,569.60 and 212,038.40 is: 317,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,161.60 : 886,569.60 = 212,038.40 : x
  2. Step 2: Convert to fraction form
    591,161.60/886,569.60 = 212,038.40/x
  3. Step 3: Cross multiply
    591,161.60x = 886,569.60 × 212,038.40
  4. Step 4: Simplify right side
    591,161.60x = 187,986,799,472.64
  5. Step 5: Solve for x
    x = 187,986,799,472.64/591,161.60
  6. Step 6: Final answer
    x = 317,995.62

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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.