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Finding the Fourth Proportional to 671,534.46, 926,715.84 and 369,728.46

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Solution

The fourth proportional to 671,534.46, 926,715.84 and 369,728.46 is: 510,224.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,534.46 : 926,715.84 = 369,728.46 : x
  2. Step 2: Convert to fraction form
    671,534.46/926,715.84 = 369,728.46/x
  3. Step 3: Cross multiply
    671,534.46x = 926,715.84 × 369,728.46
  4. Step 4: Simplify right side
    671,534.46x = 342,633,220,380.81
  5. Step 5: Solve for x
    x = 342,633,220,380.81/671,534.46
  6. Step 6: Final answer
    x = 510,224.33

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Double scale
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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.