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Finding the Fourth Proportional to 583,153.40, 871,535.01 and 425,713.40

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Solution

The fourth proportional to 583,153.40, 871,535.01 and 425,713.40 is: 636,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,153.40 : 871,535.01 = 425,713.40 : x
  2. Step 2: Convert to fraction form
    583,153.40/871,535.01 = 425,713.40/x
  3. Step 3: Cross multiply
    583,153.40x = 871,535.01 × 425,713.40
  4. Step 4: Simplify right side
    583,153.40x = 371,024,132,326.13
  5. Step 5: Solve for x
    x = 371,024,132,326.13/583,153.40
  6. Step 6: Final answer
    x = 636,237.62

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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.