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Finding the Fourth Proportional to 923,049, 1,273,851.36 and 520,641

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Solution

The fourth proportional to 923,049, 1,273,851.36 and 520,641 is: 718,509.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,049 : 1,273,851.36 = 520,641 : x
  2. Step 2: Convert to fraction form
    923,049/1,273,851.36 = 520,641/x
  3. Step 3: Cross multiply
    923,049x = 1,273,851.36 × 520,641
  4. Step 4: Simplify right side
    923,049x = 663,219,245,921.76
  5. Step 5: Solve for x
    x = 663,219,245,921.76/923,049
  6. Step 6: Final answer
    x = 718,509.25

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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.