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Finding the Fourth Proportional to 393,652.83, 590,127.61 and 153,710.91

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Solution

The fourth proportional to 393,652.83, 590,127.61 and 153,710.91 is: 230,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,652.83 : 590,127.61 = 153,710.91 : x
  2. Step 2: Convert to fraction form
    393,652.83/590,127.61 = 153,710.91/x
  3. Step 3: Cross multiply
    393,652.83x = 590,127.61 × 153,710.91
  4. Step 4: Simplify right side
    393,652.83x = 90,709,052,981.19
  5. Step 5: Solve for x
    x = 90,709,052,981.19/393,652.83
  6. Step 6: Final answer
    x = 230,429.06

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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.