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Finding the Fourth Proportional to 470,952.86, 706,453.74 and 155,434.37

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Solution

The fourth proportional to 470,952.86, 706,453.74 and 155,434.37 is: 233,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,952.86 : 706,453.74 = 155,434.37 : x
  2. Step 2: Convert to fraction form
    470,952.86/706,453.74 = 155,434.37/x
  3. Step 3: Cross multiply
    470,952.86x = 706,453.74 × 155,434.37
  4. Step 4: Simplify right side
    470,952.86x = 109,807,192,011.04
  5. Step 5: Solve for x
    x = 109,807,192,011.04/470,952.86
  6. Step 6: Final answer
    x = 233,159.62

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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.