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Finding the Fourth Proportional to 293,132.70, 439,699.05 and 214,400.70

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Solution

The fourth proportional to 293,132.70, 439,699.05 and 214,400.70 is: 321,601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,132.70 : 439,699.05 = 214,400.70 : x
  2. Step 2: Convert to fraction form
    293,132.70/439,699.05 = 214,400.70/x
  3. Step 3: Cross multiply
    293,132.70x = 439,699.05 × 214,400.70
  4. Step 4: Simplify right side
    293,132.70x = 94,271,784,109.34
  5. Step 5: Solve for x
    x = 94,271,784,109.34/293,132.70
  6. Step 6: Final answer
    x = 321,601.05

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1.5x scale

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.