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Finding the Fourth Proportional to 488,370.15, 732,555.23 and 311,004.45

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Solution

The fourth proportional to 488,370.15, 732,555.23 and 311,004.45 is: 466,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,370.15 : 732,555.23 = 311,004.45 : x
  2. Step 2: Convert to fraction form
    488,370.15/732,555.23 = 311,004.45/x
  3. Step 3: Cross multiply
    488,370.15x = 732,555.23 × 311,004.45
  4. Step 4: Simplify right side
    488,370.15x = 227,827,934,845.75
  5. Step 5: Solve for x
    x = 227,827,934,845.75/488,370.15
  6. Step 6: Final answer
    x = 466,506.68

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Similar ratio
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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.