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Finding the Fourth Proportional to 507,220.52, 700,438.48 and 326,246.61

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Solution

The fourth proportional to 507,220.52, 700,438.48 and 326,246.61 is: 450,525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,220.52 : 700,438.48 = 326,246.61 : x
  2. Step 2: Convert to fraction form
    507,220.52/700,438.48 = 326,246.61/x
  3. Step 3: Cross multiply
    507,220.52x = 700,438.48 × 326,246.61
  4. Step 4: Simplify right side
    507,220.52x = 228,515,679,613.55
  5. Step 5: Solve for x
    x = 228,515,679,613.55/507,220.52
  6. Step 6: Final answer
    x = 450,525.31

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Double scale
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1.5x scale

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.