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Finding the Fourth Proportional to 922,874.70, 1,273,579.12 and 535,780.56

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Solution

The fourth proportional to 922,874.70, 1,273,579.12 and 535,780.56 is: 739,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,874.70 : 1,273,579.12 = 535,780.56 : x
  2. Step 2: Convert to fraction form
    922,874.70/1,273,579.12 = 535,780.56/x
  3. Step 3: Cross multiply
    922,874.70x = 1,273,579.12 × 535,780.56
  4. Step 4: Simplify right side
    922,874.70x = 682,358,934,117.91
  5. Step 5: Solve for x
    x = 682,358,934,117.91/922,874.70
  6. Step 6: Final answer
    x = 739,384.16

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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.