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Finding the Fourth Proportional to 647,633.19, 971,531.17 and 347,701.51

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Solution

The fourth proportional to 647,633.19, 971,531.17 and 347,701.51 is: 521,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,633.19 : 971,531.17 = 347,701.51 : x
  2. Step 2: Convert to fraction form
    647,633.19/971,531.17 = 347,701.51/x
  3. Step 3: Cross multiply
    647,633.19x = 971,531.17 × 347,701.51
  4. Step 4: Simplify right side
    647,633.19x = 337,802,854,821.07
  5. Step 5: Solve for x
    x = 337,802,854,821.07/647,633.19
  6. Step 6: Final answer
    x = 521,595.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.