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Finding the Fourth Proportional to 715,266.69, 986,657.43 and 446,528.13

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Solution

The fourth proportional to 715,266.69, 986,657.43 and 446,528.13 is: 615,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,266.69 : 986,657.43 = 446,528.13 : x
  2. Step 2: Convert to fraction form
    715,266.69/986,657.43 = 446,528.13/x
  3. Step 3: Cross multiply
    715,266.69x = 986,657.43 × 446,528.13
  4. Step 4: Simplify right side
    715,266.69x = 440,570,297,168.51
  5. Step 5: Solve for x
    x = 440,570,297,168.51/715,266.69
  6. Step 6: Final answer
    x = 615,952.49

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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.