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Finding the Fourth Proportional to 671,694.39, 926,938.26 and 369,888.39

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Solution

The fourth proportional to 671,694.39, 926,938.26 and 369,888.39 is: 510,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,694.39 : 926,938.26 = 369,888.39 : x
  2. Step 2: Convert to fraction form
    671,694.39/926,938.26 = 369,888.39/x
  3. Step 3: Cross multiply
    671,694.39x = 926,938.26 × 369,888.39
  4. Step 4: Simplify right side
    671,694.39x = 342,863,700,620.80
  5. Step 5: Solve for x
    x = 342,863,700,620.80/671,694.39
  6. Step 6: Final answer
    x = 510,445.98

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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.