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Finding the Fourth Proportional to 632,319.32, 872,547.67 and 356,661.94

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Solution

The fourth proportional to 632,319.32, 872,547.67 and 356,661.94 is: 492,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,319.32 : 872,547.67 = 356,661.94 : x
  2. Step 2: Convert to fraction form
    632,319.32/872,547.67 = 356,661.94/x
  3. Step 3: Cross multiply
    632,319.32x = 872,547.67 × 356,661.94
  4. Step 4: Simplify right side
    632,319.32x = 311,204,538,578.63
  5. Step 5: Solve for x
    x = 311,204,538,578.63/632,319.32
  6. Step 6: Final answer
    x = 492,163.58

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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.