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Finding the Fourth Proportional to 314,888.04, 434,549.88 and 171,647.78

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Solution

The fourth proportional to 314,888.04, 434,549.88 and 171,647.78 is: 236,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,888.04 : 434,549.88 = 171,647.78 : x
  2. Step 2: Convert to fraction form
    314,888.04/434,549.88 = 171,647.78/x
  3. Step 3: Cross multiply
    314,888.04x = 434,549.88 × 171,647.78
  4. Step 4: Simplify right side
    314,888.04x = 74,589,520,028.52
  5. Step 5: Solve for x
    x = 74,589,520,028.52/314,888.04
  6. Step 6: Final answer
    x = 236,876.32

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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.