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Finding the Fourth Proportional to 353,346.10, 528,723.15 and 260,034.10

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Solution

The fourth proportional to 353,346.10, 528,723.15 and 260,034.10 is: 389,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,346.10 : 528,723.15 = 260,034.10 : x
  2. Step 2: Convert to fraction form
    353,346.10/528,723.15 = 260,034.10/x
  3. Step 3: Cross multiply
    353,346.10x = 528,723.15 × 260,034.10
  4. Step 4: Simplify right side
    353,346.10x = 137,486,048,459.42
  5. Step 5: Solve for x
    x = 137,486,048,459.42/353,346.10
  6. Step 6: Final answer
    x = 389,097.40

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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.