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Finding the Fourth Proportional to 615,412.51, 923,531.10 and 216,054.47

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Solution

The fourth proportional to 615,412.51, 923,531.10 and 216,054.47 is: 324,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,412.51 : 923,531.10 = 216,054.47 : x
  2. Step 2: Convert to fraction form
    615,412.51/923,531.10 = 216,054.47/x
  3. Step 3: Cross multiply
    615,412.51x = 923,531.10 × 216,054.47
  4. Step 4: Simplify right side
    615,412.51x = 199,533,022,339.02
  5. Step 5: Solve for x
    x = 199,533,022,339.02/615,412.51
  6. Step 6: Final answer
    x = 324,226.46

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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.