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Finding the Fourth Proportional to 338,312.96, 466,389.60 and 242,789.12

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Solution

The fourth proportional to 338,312.96, 466,389.60 and 242,789.12 is: 334,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,312.96 : 466,389.60 = 242,789.12 : x
  2. Step 2: Convert to fraction form
    338,312.96/466,389.60 = 242,789.12/x
  3. Step 3: Cross multiply
    338,312.96x = 466,389.60 × 242,789.12
  4. Step 4: Simplify right side
    338,312.96x = 113,234,320,561.15
  5. Step 5: Solve for x
    x = 113,234,320,561.15/338,312.96
  6. Step 6: Final answer
    x = 334,702.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.