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Finding the Fourth Proportional to 386,762.28, 533,723.66 and 214,670.22

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Solution

The fourth proportional to 386,762.28, 533,723.66 and 214,670.22 is: 296,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,762.28 : 533,723.66 = 214,670.22 : x
  2. Step 2: Convert to fraction form
    386,762.28/533,723.66 = 214,670.22/x
  3. Step 3: Cross multiply
    386,762.28x = 533,723.66 × 214,670.22
  4. Step 4: Simplify right side
    386,762.28x = 114,574,575,511.41
  5. Step 5: Solve for x
    x = 114,574,575,511.41/386,762.28
  6. Step 6: Final answer
    x = 296,240.30

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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.