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Finding the Fourth Proportional to 470,892.45, 706,338.69 and 155,308.35

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Solution

The fourth proportional to 470,892.45, 706,338.69 and 155,308.35 is: 232,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,892.45 : 706,338.69 = 155,308.35 : x
  2. Step 2: Convert to fraction form
    470,892.45/706,338.69 = 155,308.35/x
  3. Step 3: Cross multiply
    470,892.45x = 706,338.69 × 155,308.35
  4. Step 4: Simplify right side
    470,892.45x = 109,700,296,485.06
  5. Step 5: Solve for x
    x = 109,700,296,485.06/470,892.45
  6. Step 6: Final answer
    x = 232,962.53

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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.