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Finding the Fourth Proportional to 583,129.67, 871,499.60 and 425,689.67

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Solution

The fourth proportional to 583,129.67, 871,499.60 and 425,689.67 is: 636,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,129.67 : 871,499.60 = 425,689.67 : x
  2. Step 2: Convert to fraction form
    583,129.67/871,499.60 = 425,689.67/x
  3. Step 3: Cross multiply
    583,129.67x = 871,499.60 × 425,689.67
  4. Step 4: Simplify right side
    583,129.67x = 370,988,370,643.19
  5. Step 5: Solve for x
    x = 370,988,370,643.19/583,129.67
  6. Step 6: Final answer
    x = 636,202.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.