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Finding the Fourth Proportional to 669,053.79, 922,874.25 and 396,929.04

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Solution

The fourth proportional to 669,053.79, 922,874.25 and 396,929.04 is: 547,512.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,053.79 : 922,874.25 = 396,929.04 : x
  2. Step 2: Convert to fraction form
    669,053.79/922,874.25 = 396,929.04/x
  3. Step 3: Cross multiply
    669,053.79x = 922,874.25 × 396,929.04
  4. Step 4: Simplify right side
    669,053.79x = 366,315,590,093.22
  5. Step 5: Solve for x
    x = 366,315,590,093.22/669,053.79
  6. Step 6: Final answer
    x = 547,512.91

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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.