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Finding the Fourth Proportional to 662,510.51, 914,832.85 and 641,086.79

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Solution

The fourth proportional to 662,510.51, 914,832.85 and 641,086.79 is: 885,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,510.51 : 914,832.85 = 641,086.79 : x
  2. Step 2: Convert to fraction form
    662,510.51/914,832.85 = 641,086.79/x
  3. Step 3: Cross multiply
    662,510.51x = 914,832.85 × 641,086.79
  4. Step 4: Simplify right side
    662,510.51x = 586,487,255,193.05
  5. Step 5: Solve for x
    x = 586,487,255,193.05/662,510.51
  6. Step 6: Final answer
    x = 885,249.74

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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.