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Finding the Fourth Proportional to 590,989.60, 885,908.40 and 338,010.40

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Solution

The fourth proportional to 590,989.60, 885,908.40 and 338,010.40 is: 506,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,989.60 : 885,908.40 = 338,010.40 : x
  2. Step 2: Convert to fraction form
    590,989.60/885,908.40 = 338,010.40/x
  3. Step 3: Cross multiply
    590,989.60x = 885,908.40 × 338,010.40
  4. Step 4: Simplify right side
    590,989.60x = 299,446,252,647.36
  5. Step 5: Solve for x
    x = 299,446,252,647.36/590,989.60
  6. Step 6: Final answer
    x = 506,686.16

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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.