Home / 761,626.96-1,143,125.72-406,944.16

Finding the Fourth Proportional to 761,626.96, 1,143,125.72 and 406,944.16

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Solution

The fourth proportional to 761,626.96, 1,143,125.72 and 406,944.16 is: 610,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,626.96 : 1,143,125.72 = 406,944.16 : x
  2. Step 2: Convert to fraction form
    761,626.96/1,143,125.72 = 406,944.16/x
  3. Step 3: Cross multiply
    761,626.96x = 1,143,125.72 × 406,944.16
  4. Step 4: Simplify right side
    761,626.96x = 465,188,335,899.80
  5. Step 5: Solve for x
    x = 465,188,335,899.80/761,626.96
  6. Step 6: Final answer
    x = 610,782.39

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1.5x scale

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.