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Finding the Fourth Proportional to 622,159.20, 931,489.20 and 559,173.60

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Solution

The fourth proportional to 622,159.20, 931,489.20 and 559,173.60 is: 837,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,159.20 : 931,489.20 = 559,173.60 : x
  2. Step 2: Convert to fraction form
    622,159.20/931,489.20 = 559,173.60/x
  3. Step 3: Cross multiply
    622,159.20x = 931,489.20 × 559,173.60
  4. Step 4: Simplify right side
    622,159.20x = 520,864,169,325.12
  5. Step 5: Solve for x
    x = 520,864,169,325.12/622,159.20
  6. Step 6: Final answer
    x = 837,187.92

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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.