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Finding the Fourth Proportional to 532,790.22, 735,264.90 and 318,054.90

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Solution

The fourth proportional to 532,790.22, 735,264.90 and 318,054.90 is: 438,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,790.22 : 735,264.90 = 318,054.90 : x
  2. Step 2: Convert to fraction form
    532,790.22/735,264.90 = 318,054.90/x
  3. Step 3: Cross multiply
    532,790.22x = 735,264.90 × 318,054.90
  4. Step 4: Simplify right side
    532,790.22x = 233,854,604,243.01
  5. Step 5: Solve for x
    x = 233,854,604,243.01/532,790.22
  6. Step 6: Final answer
    x = 438,924.36

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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.