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Finding the Fourth Proportional to 567,501.39, 851,783.45 and 287,215.47

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Solution

The fourth proportional to 567,501.39, 851,783.45 and 287,215.47 is: 431,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,501.39 : 851,783.45 = 287,215.47 : x
  2. Step 2: Convert to fraction form
    567,501.39/851,783.45 = 287,215.47/x
  3. Step 3: Cross multiply
    567,501.39x = 851,783.45 × 287,215.47
  4. Step 4: Simplify right side
    567,501.39x = 244,645,382,493.89
  5. Step 5: Solve for x
    x = 244,645,382,493.89/567,501.39
  6. Step 6: Final answer
    x = 431,092.13

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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.