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Finding the Fourth Proportional to 1,345,582.76, 1,856,890.65 and 733,733.97

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Solution

The fourth proportional to 1,345,582.76, 1,856,890.65 and 733,733.97 is: 1,012,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,582.76 : 1,856,890.65 = 733,733.97 : x
  2. Step 2: Convert to fraction form
    1,345,582.76/1,856,890.65 = 733,733.97/x
  3. Step 3: Cross multiply
    1,345,582.76x = 1,856,890.65 × 733,733.97
  4. Step 4: Simplify right side
    1,345,582.76x = 1,362,463,748,480.38
  5. Step 5: Solve for x
    x = 1,362,463,748,480.38/1,345,582.76
  6. Step 6: Final answer
    x = 1,012,545.49

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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.