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Finding the Fourth Proportional to 922,464.72, 1,272,999.24 and 520,053.84

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Solution

The fourth proportional to 922,464.72, 1,272,999.24 and 520,053.84 is: 717,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,464.72 : 1,272,999.24 = 520,053.84 : x
  2. Step 2: Convert to fraction form
    922,464.72/1,272,999.24 = 520,053.84/x
  3. Step 3: Cross multiply
    922,464.72x = 1,272,999.24 × 520,053.84
  4. Step 4: Simplify right side
    922,464.72x = 662,028,143,079.08
  5. Step 5: Solve for x
    x = 662,028,143,079.08/922,464.72
  6. Step 6: Final answer
    x = 717,673.13

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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.