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Finding the Fourth Proportional to 372,457.55, 514,003.08 and 211,319.39

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Solution

The fourth proportional to 372,457.55, 514,003.08 and 211,319.39 is: 291,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,457.55 : 514,003.08 = 211,319.39 : x
  2. Step 2: Convert to fraction form
    372,457.55/514,003.08 = 211,319.39/x
  3. Step 3: Cross multiply
    372,457.55x = 514,003.08 × 211,319.39
  4. Step 4: Simplify right side
    372,457.55x = 108,618,814,753.71
  5. Step 5: Solve for x
    x = 108,618,814,753.71/372,457.55
  6. Step 6: Final answer
    x = 291,627.37

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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.