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Finding the Fourth Proportional to 676,806.76, 933,993.48 and 404,885.98

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Solution

The fourth proportional to 676,806.76, 933,993.48 and 404,885.98 is: 558,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,806.76 : 933,993.48 = 404,885.98 : x
  2. Step 2: Convert to fraction form
    676,806.76/933,993.48 = 404,885.98/x
  3. Step 3: Cross multiply
    676,806.76x = 933,993.48 × 404,885.98
  4. Step 4: Simplify right side
    676,806.76x = 378,160,865,463.41
  5. Step 5: Solve for x
    x = 378,160,865,463.41/676,806.76
  6. Step 6: Final answer
    x = 558,742.74

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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.