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Finding the Fourth Proportional to 611,270.88, 916,948.44 and 255,927.12

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Solution

The fourth proportional to 611,270.88, 916,948.44 and 255,927.12 is: 383,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,270.88 : 916,948.44 = 255,927.12 : x
  2. Step 2: Convert to fraction form
    611,270.88/916,948.44 = 255,927.12/x
  3. Step 3: Cross multiply
    611,270.88x = 916,948.44 × 255,927.12
  4. Step 4: Simplify right side
    611,270.88x = 234,671,973,437.69
  5. Step 5: Solve for x
    x = 234,671,973,437.69/611,270.88
  6. Step 6: Final answer
    x = 383,908.31

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Double scale
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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.