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Finding the Fourth Proportional to 671,531.46, 926,711.70 and 369,725.46

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Solution

The fourth proportional to 671,531.46, 926,711.70 and 369,725.46 is: 510,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,531.46 : 926,711.70 = 369,725.46 : x
  2. Step 2: Convert to fraction form
    671,531.46/926,711.70 = 369,725.46/x
  3. Step 3: Cross multiply
    671,531.46x = 926,711.70 × 369,725.46
  4. Step 4: Simplify right side
    671,531.46x = 342,628,909,569.88
  5. Step 5: Solve for x
    x = 342,628,909,569.88/671,531.46
  6. Step 6: Final answer
    x = 510,220.19

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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.