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Finding the Fourth Proportional to 575,699.76, 863,342.28 and 243,301.68

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Solution

The fourth proportional to 575,699.76, 863,342.28 and 243,301.68 is: 364,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,699.76 : 863,342.28 = 243,301.68 : x
  2. Step 2: Convert to fraction form
    575,699.76/863,342.28 = 243,301.68/x
  3. Step 3: Cross multiply
    575,699.76x = 863,342.28 × 243,301.68
  4. Step 4: Simplify right side
    575,699.76x = 210,052,627,139.03
  5. Step 5: Solve for x
    x = 210,052,627,139.03/575,699.76
  6. Step 6: Final answer
    x = 364,864.89

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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.