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Finding the Fourth Proportional to 1,964,981.79, 2,947,472.51 and 545,037.93

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Solution

The fourth proportional to 1,964,981.79, 2,947,472.51 and 545,037.93 is: 817,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,981.79 : 2,947,472.51 = 545,037.93 : x
  2. Step 2: Convert to fraction form
    1,964,981.79/2,947,472.51 = 545,037.93/x
  3. Step 3: Cross multiply
    1,964,981.79x = 2,947,472.51 × 545,037.93
  4. Step 4: Simplify right side
    1,964,981.79x = 1,606,484,312,857.11
  5. Step 5: Solve for x
    x = 1,606,484,312,857.11/1,964,981.79
  6. Step 6: Final answer
    x = 817,556.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.