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Finding the Fourth Proportional to 501,612.48, 692,215.92 and 283,818.84

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Solution

The fourth proportional to 501,612.48, 692,215.92 and 283,818.84 is: 391,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,612.48 : 692,215.92 = 283,818.84 : x
  2. Step 2: Convert to fraction form
    501,612.48/692,215.92 = 283,818.84/x
  3. Step 3: Cross multiply
    501,612.48x = 692,215.92 × 283,818.84
  4. Step 4: Simplify right side
    501,612.48x = 196,463,919,443.93
  5. Step 5: Solve for x
    x = 196,463,919,443.93/501,612.48
  6. Step 6: Final answer
    x = 391,664.74

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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.