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Finding the Fourth Proportional to 539,449.65, 744,465.30 and 310,081.14

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Solution

The fourth proportional to 539,449.65, 744,465.30 and 310,081.14 is: 427,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,449.65 : 744,465.30 = 310,081.14 : x
  2. Step 2: Convert to fraction form
    539,449.65/744,465.30 = 310,081.14/x
  3. Step 3: Cross multiply
    539,449.65x = 744,465.30 × 310,081.14
  4. Step 4: Simplify right side
    539,449.65x = 230,844,648,914.44
  5. Step 5: Solve for x
    x = 230,844,648,914.44/539,449.65
  6. Step 6: Final answer
    x = 427,926.22

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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.