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Finding the Fourth Proportional to 353,147.10, 530,335.05 and 187,259.10

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Solution

The fourth proportional to 353,147.10, 530,335.05 and 187,259.10 is: 281,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,147.10 : 530,335.05 = 187,259.10 : x
  2. Step 2: Convert to fraction form
    353,147.10/530,335.05 = 187,259.10/x
  3. Step 3: Cross multiply
    353,147.10x = 530,335.05 × 187,259.10
  4. Step 4: Simplify right side
    353,147.10x = 99,310,064,161.46
  5. Step 5: Solve for x
    x = 99,310,064,161.46/353,147.10
  6. Step 6: Final answer
    x = 281,214.44

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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.