Home / 566,111.92-781,234.40-311,457.64

Finding the Fourth Proportional to 566,111.92, 781,234.40 and 311,457.64

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Solution

The fourth proportional to 566,111.92, 781,234.40 and 311,457.64 is: 429,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,111.92 : 781,234.40 = 311,457.64 : x
  2. Step 2: Convert to fraction form
    566,111.92/781,234.40 = 311,457.64/x
  3. Step 3: Cross multiply
    566,111.92x = 781,234.40 × 311,457.64
  4. Step 4: Simplify right side
    566,111.92x = 243,321,422,510.82
  5. Step 5: Solve for x
    x = 243,321,422,510.82/566,111.92
  6. Step 6: Final answer
    x = 429,811.52

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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.