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Finding the Fourth Proportional to 611,366.01, 916,754.06 and 256,284.69

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Solution

The fourth proportional to 611,366.01, 916,754.06 and 256,284.69 is: 384,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,366.01 : 916,754.06 = 256,284.69 : x
  2. Step 2: Convert to fraction form
    611,366.01/916,754.06 = 256,284.69/x
  3. Step 3: Cross multiply
    611,366.01x = 916,754.06 × 256,284.69
  4. Step 4: Simplify right side
    611,366.01x = 234,950,024,208.15
  5. Step 5: Solve for x
    x = 234,950,024,208.15/611,366.01
  6. Step 6: Final answer
    x = 384,303.38

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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.