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Finding the Fourth Proportional to 676,571.84, 933,669.05 and 404,639.69

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Solution

The fourth proportional to 676,571.84, 933,669.05 and 404,639.69 is: 558,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,571.84 : 933,669.05 = 404,639.69 : x
  2. Step 2: Convert to fraction form
    676,571.84/933,669.05 = 404,639.69/x
  3. Step 3: Cross multiply
    676,571.84x = 933,669.05 × 404,639.69
  4. Step 4: Simplify right side
    676,571.84x = 377,799,554,954.60
  5. Step 5: Solve for x
    x = 377,799,554,954.60/676,571.84
  6. Step 6: Final answer
    x = 558,402.72

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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.