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Finding the Fourth Proportional to 992,330.99, 1,369,375.42 and 562,640.16

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Solution

The fourth proportional to 992,330.99, 1,369,375.42 and 562,640.16 is: 776,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,330.99 : 1,369,375.42 = 562,640.16 : x
  2. Step 2: Convert to fraction form
    992,330.99/1,369,375.42 = 562,640.16/x
  3. Step 3: Cross multiply
    992,330.99x = 1,369,375.42 × 562,640.16
  4. Step 4: Simplify right side
    992,330.99x = 770,465,605,408.87
  5. Step 5: Solve for x
    x = 770,465,605,408.87/992,330.99
  6. Step 6: Final answer
    x = 776,419.98

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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.