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Finding the Fourth Proportional to 368,466.10, 551,921.55 and 289,150.90

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Solution

The fourth proportional to 368,466.10, 551,921.55 and 289,150.90 is: 433,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,466.10 : 551,921.55 = 289,150.90 : x
  2. Step 2: Convert to fraction form
    368,466.10/551,921.55 = 289,150.90/x
  3. Step 3: Cross multiply
    368,466.10x = 551,921.55 × 289,150.90
  4. Step 4: Simplify right side
    368,466.10x = 159,588,612,911.90
  5. Step 5: Solve for x
    x = 159,588,612,911.90/368,466.10
  6. Step 6: Final answer
    x = 433,116.13

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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.