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Finding the Fourth Proportional to 292,451.10, 438,294.45 and 211,670.13

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Solution

The fourth proportional to 292,451.10, 438,294.45 and 211,670.13 is: 317,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,451.10 : 438,294.45 = 211,670.13 : x
  2. Step 2: Convert to fraction form
    292,451.10/438,294.45 = 211,670.13/x
  3. Step 3: Cross multiply
    292,451.10x = 438,294.45 × 211,670.13
  4. Step 4: Simplify right side
    292,451.10x = 92,773,843,209.78
  5. Step 5: Solve for x
    x = 92,773,843,209.78/292,451.10
  6. Step 6: Final answer
    x = 317,228.57

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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.