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Finding the Fourth Proportional to 661,335.75, 912,649.82 and 359,536.23

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Solution

The fourth proportional to 661,335.75, 912,649.82 and 359,536.23 is: 496,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,335.75 : 912,649.82 = 359,536.23 : x
  2. Step 2: Convert to fraction form
    661,335.75/912,649.82 = 359,536.23/x
  3. Step 3: Cross multiply
    661,335.75x = 912,649.82 × 359,536.23
  4. Step 4: Simplify right side
    661,335.75x = 328,130,673,795.30
  5. Step 5: Solve for x
    x = 328,130,673,795.30/661,335.75
  6. Step 6: Final answer
    x = 496,163.52

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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.