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Finding the Fourth Proportional to 508,390.08, 701,661.84 and 282,108.48

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Solution

The fourth proportional to 508,390.08, 701,661.84 and 282,108.48 is: 389,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,390.08 : 701,661.84 = 282,108.48 : x
  2. Step 2: Convert to fraction form
    508,390.08/701,661.84 = 282,108.48/x
  3. Step 3: Cross multiply
    508,390.08x = 701,661.84 × 282,108.48
  4. Step 4: Simplify right side
    508,390.08x = 197,944,755,156.40
  5. Step 5: Solve for x
    x = 197,944,755,156.40/508,390.08
  6. Step 6: Final answer
    x = 389,356.05

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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.