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Finding the Fourth Proportional to 1,908,973, 2,863,476.78 and 579,277

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Solution

The fourth proportional to 1,908,973, 2,863,476.78 and 579,277 is: 868,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,973 : 2,863,476.78 = 579,277 : x
  2. Step 2: Convert to fraction form
    1,908,973/2,863,476.78 = 579,277/x
  3. Step 3: Cross multiply
    1,908,973x = 2,863,476.78 × 579,277
  4. Step 4: Simplify right side
    1,908,973x = 1,658,746,238,688.06
  5. Step 5: Solve for x
    x = 1,658,746,238,688.06/1,908,973
  6. Step 6: Final answer
    x = 868,920.74

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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.