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Finding the Fourth Proportional to 834,902.40, 1,251,326.40 and 384,998.40

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Solution

The fourth proportional to 834,902.40, 1,251,326.40 and 384,998.40 is: 577,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,902.40 : 1,251,326.40 = 384,998.40 : x
  2. Step 2: Convert to fraction form
    834,902.40/1,251,326.40 = 384,998.40/x
  3. Step 3: Cross multiply
    834,902.40x = 1,251,326.40 × 384,998.40
  4. Step 4: Simplify right side
    834,902.40x = 481,758,661,877.76
  5. Step 5: Solve for x
    x = 481,758,661,877.76/834,902.40
  6. Step 6: Final answer
    x = 577,023.93

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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.