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Finding the Fourth Proportional to 341,221.45, 471,036.59 and 220,421.63

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Solution

The fourth proportional to 341,221.45, 471,036.59 and 220,421.63 is: 304,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,221.45 : 471,036.59 = 220,421.63 : x
  2. Step 2: Convert to fraction form
    341,221.45/471,036.59 = 220,421.63/x
  3. Step 3: Cross multiply
    341,221.45x = 471,036.59 × 220,421.63
  4. Step 4: Simplify right side
    341,221.45x = 103,826,652,957.44
  5. Step 5: Solve for x
    x = 103,826,652,957.44/341,221.45
  6. Step 6: Final answer
    x = 304,279.39

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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.