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Finding the Fourth Proportional to 611,158.23, 917,637.02 and 341,814.06

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Solution

The fourth proportional to 611,158.23, 917,637.02 and 341,814.06 is: 513,224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,158.23 : 917,637.02 = 341,814.06 : x
  2. Step 2: Convert to fraction form
    611,158.23/917,637.02 = 341,814.06/x
  3. Step 3: Cross multiply
    611,158.23x = 917,637.02 × 341,814.06
  4. Step 4: Simplify right side
    611,158.23x = 313,661,234,985.23
  5. Step 5: Solve for x
    x = 313,661,234,985.23/611,158.23
  6. Step 6: Final answer
    x = 513,224.27

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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.