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Finding the Fourth Proportional to 474,430.25, 654,694.49 and 283,548.89

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Solution

The fourth proportional to 474,430.25, 654,694.49 and 283,548.89 is: 391,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,430.25 : 654,694.49 = 283,548.89 : x
  2. Step 2: Convert to fraction form
    474,430.25/654,694.49 = 283,548.89/x
  3. Step 3: Cross multiply
    474,430.25x = 654,694.49 × 283,548.89
  4. Step 4: Simplify right side
    474,430.25x = 185,637,891,237.40
  5. Step 5: Solve for x
    x = 185,637,891,237.40/474,430.25
  6. Step 6: Final answer
    x = 391,285.95

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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.