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Finding the Fourth Proportional to 373,508.20, 515,437.86 and 230,210.92

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Solution

The fourth proportional to 373,508.20, 515,437.86 and 230,210.92 is: 317,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,508.20 : 515,437.86 = 230,210.92 : x
  2. Step 2: Convert to fraction form
    373,508.20/515,437.86 = 230,210.92/x
  3. Step 3: Cross multiply
    373,508.20x = 515,437.86 × 230,210.92
  4. Step 4: Simplify right side
    373,508.20x = 118,659,423,953.43
  5. Step 5: Solve for x
    x = 118,659,423,953.43/373,508.20
  6. Step 6: Final answer
    x = 317,688.94

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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.