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Finding the Fourth Proportional to 353,310.06, 528,740.37 and 338,613.42

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Solution

The fourth proportional to 353,310.06, 528,740.37 and 338,613.42 is: 506,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,310.06 : 528,740.37 = 338,613.42 : x
  2. Step 2: Convert to fraction form
    353,310.06/528,740.37 = 338,613.42/x
  3. Step 3: Cross multiply
    353,310.06x = 528,740.37 × 338,613.42
  4. Step 4: Simplify right side
    353,310.06x = 179,038,584,977.77
  5. Step 5: Solve for x
    x = 179,038,584,977.77/353,310.06
  6. Step 6: Final answer
    x = 506,746.35

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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.