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Finding the Fourth Proportional to 403,079.37, 604,619.51 and 103,562.43

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Solution

The fourth proportional to 403,079.37, 604,619.51 and 103,562.43 is: 155,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,079.37 : 604,619.51 = 103,562.43 : x
  2. Step 2: Convert to fraction form
    403,079.37/604,619.51 = 103,562.43/x
  3. Step 3: Cross multiply
    403,079.37x = 604,619.51 × 103,562.43
  4. Step 4: Simplify right side
    403,079.37x = 62,615,865,681.01
  5. Step 5: Solve for x
    x = 62,615,865,681.01/403,079.37
  6. Step 6: Final answer
    x = 155,343.76

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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.