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Finding the Fourth Proportional to 590,906.30, 885,322.65 and 485,152.70

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Solution

The fourth proportional to 590,906.30, 885,322.65 and 485,152.70 is: 726,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,906.30 : 885,322.65 = 485,152.70 : x
  2. Step 2: Convert to fraction form
    590,906.30/885,322.65 = 485,152.70/x
  3. Step 3: Cross multiply
    590,906.30x = 885,322.65 × 485,152.70
  4. Step 4: Simplify right side
    590,906.30x = 429,516,674,018.66
  5. Step 5: Solve for x
    x = 429,516,674,018.66/590,906.30
  6. Step 6: Final answer
    x = 726,877.80

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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.