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Finding the Fourth Proportional to 364,745.42, 503,346.74 and 211,821.21

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Solution

The fourth proportional to 364,745.42, 503,346.74 and 211,821.21 is: 292,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,745.42 : 503,346.74 = 211,821.21 : x
  2. Step 2: Convert to fraction form
    364,745.42/503,346.74 = 211,821.21/x
  3. Step 3: Cross multiply
    364,745.42x = 503,346.74 × 211,821.21
  4. Step 4: Simplify right side
    364,745.42x = 106,619,514,457.25
  5. Step 5: Solve for x
    x = 106,619,514,457.25/364,745.42
  6. Step 6: Final answer
    x = 292,312.14

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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.