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Finding the Fourth Proportional to 1,358,488.54, 1,874,733.59 and 746,697.87

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Solution

The fourth proportional to 1,358,488.54, 1,874,733.59 and 746,697.87 is: 1,030,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,488.54 : 1,874,733.59 = 746,697.87 : x
  2. Step 2: Convert to fraction form
    1,358,488.54/1,874,733.59 = 746,697.87/x
  3. Step 3: Cross multiply
    1,358,488.54x = 1,874,733.59 × 746,697.87
  4. Step 4: Simplify right side
    1,358,488.54x = 1,399,859,580,337.20
  5. Step 5: Solve for x
    x = 1,399,859,580,337.20/1,358,488.54
  6. Step 6: Final answer
    x = 1,030,453.73

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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.