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Finding the Fourth Proportional to 926,651, 1,278,769.74 and 524,243

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Solution

The fourth proportional to 926,651, 1,278,769.74 and 524,243 is: 723,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,651 : 1,278,769.74 = 524,243 : x
  2. Step 2: Convert to fraction form
    926,651/1,278,769.74 = 524,243/x
  3. Step 3: Cross multiply
    926,651x = 1,278,769.74 × 524,243
  4. Step 4: Simplify right side
    926,651x = 670,386,084,806.82
  5. Step 5: Solve for x
    x = 670,386,084,806.82/926,651
  6. Step 6: Final answer
    x = 723,450.45

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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.