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Finding the Fourth Proportional to 583,130.42, 871,500.72 and 425,690.42

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Solution

The fourth proportional to 583,130.42, 871,500.72 and 425,690.42 is: 636,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,130.42 : 871,500.72 = 425,690.42 : x
  2. Step 2: Convert to fraction form
    583,130.42/871,500.72 = 425,690.42/x
  3. Step 3: Cross multiply
    583,130.42x = 871,500.72 × 425,690.42
  4. Step 4: Simplify right side
    583,130.42x = 370,989,503,169.60
  5. Step 5: Solve for x
    x = 370,989,503,169.60/583,130.42
  6. Step 6: Final answer
    x = 636,203.32

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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.