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Finding the Fourth Proportional to 445,748.66, 615,133.11 and 252,152.23

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Solution

The fourth proportional to 445,748.66, 615,133.11 and 252,152.23 is: 347,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,748.66 : 615,133.11 = 252,152.23 : x
  2. Step 2: Convert to fraction form
    445,748.66/615,133.11 = 252,152.23/x
  3. Step 3: Cross multiply
    445,748.66x = 615,133.11 × 252,152.23
  4. Step 4: Simplify right side
    445,748.66x = 155,107,184,576.09
  5. Step 5: Solve for x
    x = 155,107,184,576.09/445,748.66
  6. Step 6: Final answer
    x = 347,970.05

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Double scale
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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.