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Finding the Fourth Proportional to 341,555.20, 512,332.80 and 223,590.40

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Solution

The fourth proportional to 341,555.20, 512,332.80 and 223,590.40 is: 335,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,555.20 : 512,332.80 = 223,590.40 : x
  2. Step 2: Convert to fraction form
    341,555.20/512,332.80 = 223,590.40/x
  3. Step 3: Cross multiply
    341,555.20x = 512,332.80 × 223,590.40
  4. Step 4: Simplify right side
    341,555.20x = 114,552,695,685.12
  5. Step 5: Solve for x
    x = 114,552,695,685.12/341,555.20
  6. Step 6: Final answer
    x = 335,385.60

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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.