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Finding the Fourth Proportional to 611,444.15, 916,230.96 and 256,264.41

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Solution

The fourth proportional to 611,444.15, 916,230.96 and 256,264.41 is: 384,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,444.15 : 916,230.96 = 256,264.41 : x
  2. Step 2: Convert to fraction form
    611,444.15/916,230.96 = 256,264.41/x
  3. Step 3: Cross multiply
    611,444.15x = 916,230.96 × 256,264.41
  4. Step 4: Simplify right side
    611,444.15x = 234,797,386,388.13
  5. Step 5: Solve for x
    x = 234,797,386,388.13/611,444.15
  6. Step 6: Final answer
    x = 384,004.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.