Home / 918,234.40-1,266,800.64-530,978.56

Finding the Fourth Proportional to 918,234.40, 1,266,800.64 and 530,978.56

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Solution

The fourth proportional to 918,234.40, 1,266,800.64 and 530,978.56 is: 732,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,234.40 : 1,266,800.64 = 530,978.56 : x
  2. Step 2: Convert to fraction form
    918,234.40/1,266,800.64 = 530,978.56/x
  3. Step 3: Cross multiply
    918,234.40x = 1,266,800.64 × 530,978.56
  4. Step 4: Simplify right side
    918,234.40x = 672,643,979,634.28
  5. Step 5: Solve for x
    x = 672,643,979,634.28/918,234.40
  6. Step 6: Final answer
    x = 732,540.60

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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.