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Finding the Fourth Proportional to 357,684.88, 493,686.48 and 236,830.72

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Solution

The fourth proportional to 357,684.88, 493,686.48 and 236,830.72 is: 326,880.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,684.88 : 493,686.48 = 236,830.72 : x
  2. Step 2: Convert to fraction form
    357,684.88/493,686.48 = 236,830.72/x
  3. Step 3: Cross multiply
    357,684.88x = 493,686.48 × 236,830.72
  4. Step 4: Simplify right side
    357,684.88x = 116,920,124,512.67
  5. Step 5: Solve for x
    x = 116,920,124,512.67/357,684.88
  6. Step 6: Final answer
    x = 326,880.25

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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.