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Finding the Fourth Proportional to 353,631.80, 530,447.70 and 314,924.60

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Solution

The fourth proportional to 353,631.80, 530,447.70 and 314,924.60 is: 472,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,631.80 : 530,447.70 = 314,924.60 : x
  2. Step 2: Convert to fraction form
    353,631.80/530,447.70 = 314,924.60/x
  3. Step 3: Cross multiply
    353,631.80x = 530,447.70 × 314,924.60
  4. Step 4: Simplify right side
    353,631.80x = 167,051,029,743.42
  5. Step 5: Solve for x
    x = 167,051,029,743.42/353,631.80
  6. Step 6: Final answer
    x = 472,386.90

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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.