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Finding the Fourth Proportional to 403,557.60, 556,642.80 and 252,392.16

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Solution

The fourth proportional to 403,557.60, 556,642.80 and 252,392.16 is: 348,134.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,557.60 : 556,642.80 = 252,392.16 : x
  2. Step 2: Convert to fraction form
    403,557.60/556,642.80 = 252,392.16/x
  3. Step 3: Cross multiply
    403,557.60x = 556,642.80 × 252,392.16
  4. Step 4: Simplify right side
    403,557.60x = 140,492,278,640.45
  5. Step 5: Solve for x
    x = 140,492,278,640.45/403,557.60
  6. Step 6: Final answer
    x = 348,134.39

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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.