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Finding the Fourth Proportional to 316,832.40, 437,187.24 and 189,461.52

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Solution

The fourth proportional to 316,832.40, 437,187.24 and 189,461.52 is: 261,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,832.40 : 437,187.24 = 189,461.52 : x
  2. Step 2: Convert to fraction form
    316,832.40/437,187.24 = 189,461.52/x
  3. Step 3: Cross multiply
    316,832.40x = 437,187.24 × 189,461.52
  4. Step 4: Simplify right side
    316,832.40x = 82,830,159,015.00
  5. Step 5: Solve for x
    x = 82,830,159,015.00/316,832.40
  6. Step 6: Final answer
    x = 261,432.10

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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.