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Finding the Fourth Proportional to 622,681.43, 859,186.21 and 350,691.07

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Solution

The fourth proportional to 622,681.43, 859,186.21 and 350,691.07 is: 483,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,681.43 : 859,186.21 = 350,691.07 : x
  2. Step 2: Convert to fraction form
    622,681.43/859,186.21 = 350,691.07/x
  3. Step 3: Cross multiply
    622,681.43x = 859,186.21 × 350,691.07
  4. Step 4: Simplify right side
    622,681.43x = 301,308,931,314.15
  5. Step 5: Solve for x
    x = 301,308,931,314.15/622,681.43
  6. Step 6: Final answer
    x = 483,889.38

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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.