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Finding the Fourth Proportional to 403,549.32, 556,889.94 and 252,729.48

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Solution

The fourth proportional to 403,549.32, 556,889.94 and 252,729.48 is: 348,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,549.32 : 556,889.94 = 252,729.48 : x
  2. Step 2: Convert to fraction form
    403,549.32/556,889.94 = 252,729.48/x
  3. Step 3: Cross multiply
    403,549.32x = 556,889.94 × 252,729.48
  4. Step 4: Simplify right side
    403,549.32x = 140,742,504,953.43
  5. Step 5: Solve for x
    x = 140,742,504,953.43/403,549.32
  6. Step 6: Final answer
    x = 348,761.60

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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.