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Finding the Fourth Proportional to 922,347.32, 1,273,431.54 and 578,654.52

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Solution

The fourth proportional to 922,347.32, 1,273,431.54 and 578,654.52 is: 798,914.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,347.32 : 1,273,431.54 = 578,654.52 : x
  2. Step 2: Convert to fraction form
    922,347.32/1,273,431.54 = 578,654.52/x
  3. Step 3: Cross multiply
    922,347.32x = 1,273,431.54 × 578,654.52
  4. Step 4: Simplify right side
    922,347.32x = 736,876,916,531.56
  5. Step 5: Solve for x
    x = 736,876,916,531.56/922,347.32
  6. Step 6: Final answer
    x = 798,914.79

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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.