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Finding the Fourth Proportional to 415,041.26, 621,563.88 and 237,008.66

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Solution

The fourth proportional to 415,041.26, 621,563.88 and 237,008.66 is: 354,943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,041.26 : 621,563.88 = 237,008.66 : x
  2. Step 2: Convert to fraction form
    415,041.26/621,563.88 = 237,008.66/x
  3. Step 3: Cross multiply
    415,041.26x = 621,563.88 × 237,008.66
  4. Step 4: Simplify right side
    415,041.26x = 147,316,022,303.20
  5. Step 5: Solve for x
    x = 147,316,022,303.20/415,041.26
  6. Step 6: Final answer
    x = 354,943.08

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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.