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Finding the Fourth Proportional to 358,885.58, 538,411.65 and 122,230.31

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Solution

The fourth proportional to 358,885.58, 538,411.65 and 122,230.31 is: 183,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,885.58 : 538,411.65 = 122,230.31 : x
  2. Step 2: Convert to fraction form
    358,885.58/538,411.65 = 122,230.31/x
  3. Step 3: Cross multiply
    358,885.58x = 538,411.65 × 122,230.31
  4. Step 4: Simplify right side
    358,885.58x = 65,810,220,195.05
  5. Step 5: Solve for x
    x = 65,810,220,195.05/358,885.58
  6. Step 6: Final answer
    x = 183,373.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.