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Finding the Fourth Proportional to 574,942.92, 787,674.64 and 553,394.48

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Solution

The fourth proportional to 574,942.92, 787,674.64 and 553,394.48 is: 758,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,942.92 : 787,674.64 = 553,394.48 : x
  2. Step 2: Convert to fraction form
    574,942.92/787,674.64 = 553,394.48/x
  3. Step 3: Cross multiply
    574,942.92x = 787,674.64 × 553,394.48
  4. Step 4: Simplify right side
    574,942.92x = 435,894,797,811.99
  5. Step 5: Solve for x
    x = 435,894,797,811.99/574,942.92
  6. Step 6: Final answer
    x = 758,153.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.