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Finding the Fourth Proportional to 341,638.10, 512,457.15 and 152,098.10

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Solution

The fourth proportional to 341,638.10, 512,457.15 and 152,098.10 is: 228,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,638.10 : 512,457.15 = 152,098.10 : x
  2. Step 2: Convert to fraction form
    341,638.10/512,457.15 = 152,098.10/x
  3. Step 3: Cross multiply
    341,638.10x = 512,457.15 × 152,098.10
  4. Step 4: Simplify right side
    341,638.10x = 77,943,758,846.42
  5. Step 5: Solve for x
    x = 77,943,758,846.42/341,638.10
  6. Step 6: Final answer
    x = 228,147.15

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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.