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Finding the Fourth Proportional to 661,752, 913,217.76 and 359,952.48

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Solution

The fourth proportional to 661,752, 913,217.76 and 359,952.48 is: 496,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,752 : 913,217.76 = 359,952.48 : x
  2. Step 2: Convert to fraction form
    661,752/913,217.76 = 359,952.48/x
  3. Step 3: Cross multiply
    661,752x = 913,217.76 × 359,952.48
  4. Step 4: Simplify right side
    661,752x = 328,714,997,492.05
  5. Step 5: Solve for x
    x = 328,714,997,492.05/661,752
  6. Step 6: Final answer
    x = 496,734.42

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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.