Home / 653,855.87-902,723.67-518,436.83

Finding the Fourth Proportional to 653,855.87, 902,723.67 and 518,436.83

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Solution

The fourth proportional to 653,855.87, 902,723.67 and 518,436.83 is: 715,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,855.87 : 902,723.67 = 518,436.83 : x
  2. Step 2: Convert to fraction form
    653,855.87/902,723.67 = 518,436.83/x
  3. Step 3: Cross multiply
    653,855.87x = 902,723.67 × 518,436.83
  4. Step 4: Simplify right side
    653,855.87x = 468,005,193,327.15
  5. Step 5: Solve for x
    x = 468,005,193,327.15/653,855.87
  6. Step 6: Final answer
    x = 715,762.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.