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Finding the Fourth Proportional to 992,329.72, 1,369,373.68 and 562,638.92

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Solution

The fourth proportional to 992,329.72, 1,369,373.68 and 562,638.92 is: 776,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,329.72 : 1,369,373.68 = 562,638.92 : x
  2. Step 2: Convert to fraction form
    992,329.72/1,369,373.68 = 562,638.92/x
  3. Step 3: Cross multiply
    992,329.72x = 1,369,373.68 × 562,638.92
  4. Step 4: Simplify right side
    992,329.72x = 770,462,928,391.63
  5. Step 5: Solve for x
    x = 770,462,928,391.63/992,329.72
  6. Step 6: Final answer
    x = 776,418.27

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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.