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Finding the Fourth Proportional to 404,641.76, 607,040.76 and 155,304.32

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Solution

The fourth proportional to 404,641.76, 607,040.76 and 155,304.32 is: 232,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,641.76 : 607,040.76 = 155,304.32 : x
  2. Step 2: Convert to fraction form
    404,641.76/607,040.76 = 155,304.32/x
  3. Step 3: Cross multiply
    404,641.76x = 607,040.76 × 155,304.32
  4. Step 4: Simplify right side
    404,641.76x = 94,276,052,444.08
  5. Step 5: Solve for x
    x = 94,276,052,444.08/404,641.76
  6. Step 6: Final answer
    x = 232,986.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.