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Finding the Fourth Proportional to 355,222.70, 532,374.74 and 265,774.40

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Solution

The fourth proportional to 355,222.70, 532,374.74 and 265,774.40 is: 398,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,222.70 : 532,374.74 = 265,774.40 : x
  2. Step 2: Convert to fraction form
    355,222.70/532,374.74 = 265,774.40/x
  3. Step 3: Cross multiply
    355,222.70x = 532,374.74 × 265,774.40
  4. Step 4: Simplify right side
    355,222.70x = 141,491,577,098.66
  5. Step 5: Solve for x
    x = 141,491,577,098.66/355,222.70
  6. Step 6: Final answer
    x = 398,317.95

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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.