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Finding the Fourth Proportional to 671,156.98, 926,196.78 and 369,350.98

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Solution

The fourth proportional to 671,156.98, 926,196.78 and 369,350.98 is: 509,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,156.98 : 926,196.78 = 369,350.98 : x
  2. Step 2: Convert to fraction form
    671,156.98/926,196.78 = 369,350.98/x
  3. Step 3: Cross multiply
    671,156.98x = 926,196.78 × 369,350.98
  4. Step 4: Simplify right side
    671,156.98x = 342,091,688,365.84
  5. Step 5: Solve for x
    x = 342,091,688,365.84/671,156.98
  6. Step 6: Final answer
    x = 509,704.43

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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.