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Finding the Fourth Proportional to 590,513.60, 885,597.60 and 211,390.40

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Solution

The fourth proportional to 590,513.60, 885,597.60 and 211,390.40 is: 317,023.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,513.60 : 885,597.60 = 211,390.40 : x
  2. Step 2: Convert to fraction form
    590,513.60/885,597.60 = 211,390.40/x
  3. Step 3: Cross multiply
    590,513.60x = 885,597.60 × 211,390.40
  4. Step 4: Simplify right side
    590,513.60x = 187,206,830,903.04
  5. Step 5: Solve for x
    x = 187,206,830,903.04/590,513.60
  6. Step 6: Final answer
    x = 317,023.74

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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.