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Finding the Fourth Proportional to 346,775.85, 520,163.78 and 97,457.85

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Solution

The fourth proportional to 346,775.85, 520,163.78 and 97,457.85 is: 146,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,775.85 : 520,163.78 = 97,457.85 : x
  2. Step 2: Convert to fraction form
    346,775.85/520,163.78 = 97,457.85/x
  3. Step 3: Cross multiply
    346,775.85x = 520,163.78 × 97,457.85
  4. Step 4: Simplify right side
    346,775.85x = 50,694,043,159.38
  5. Step 5: Solve for x
    x = 50,694,043,159.38/346,775.85
  6. Step 6: Final answer
    x = 146,186.78

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1.5x scale

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.