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Finding the Fourth Proportional to 676,480.84, 933,550.42 and 408,157

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Solution

The fourth proportional to 676,480.84, 933,550.42 and 408,157 is: 563,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,480.84 : 933,550.42 = 408,157 : x
  2. Step 2: Convert to fraction form
    676,480.84/933,550.42 = 408,157/x
  3. Step 3: Cross multiply
    676,480.84x = 933,550.42 × 408,157
  4. Step 4: Simplify right side
    676,480.84x = 381,035,138,775.94
  5. Step 5: Solve for x
    x = 381,035,138,775.94/676,480.84
  6. Step 6: Final answer
    x = 563,260.80

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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.