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Finding the Fourth Proportional to 314,542.71, 434,087.10 and 236,879.30

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Solution

The fourth proportional to 314,542.71, 434,087.10 and 236,879.30 is: 326,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,542.71 : 434,087.10 = 236,879.30 : x
  2. Step 2: Convert to fraction form
    314,542.71/434,087.10 = 236,879.30/x
  3. Step 3: Cross multiply
    314,542.71x = 434,087.10 × 236,879.30
  4. Step 4: Simplify right side
    314,542.71x = 102,826,249,472.25
  5. Step 5: Solve for x
    x = 102,826,249,472.25/314,542.71
  6. Step 6: Final answer
    x = 326,907.11

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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.