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Finding the Fourth Proportional to 472,191.48, 651,605.31 and 257,326.97

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Solution

The fourth proportional to 472,191.48, 651,605.31 and 257,326.97 is: 355,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,191.48 : 651,605.31 = 257,326.97 : x
  2. Step 2: Convert to fraction form
    472,191.48/651,605.31 = 257,326.97/x
  3. Step 3: Cross multiply
    472,191.48x = 651,605.31 × 257,326.97
  4. Step 4: Simplify right side
    472,191.48x = 167,675,616,800.18
  5. Step 5: Solve for x
    x = 167,675,616,800.18/472,191.48
  6. Step 6: Final answer
    x = 355,100.89

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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.