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Finding the Fourth Proportional to 346,958.28, 520,437.54 and 97,640.28

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Solution

The fourth proportional to 346,958.28, 520,437.54 and 97,640.28 is: 146,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,958.28 : 520,437.54 = 97,640.28 : x
  2. Step 2: Convert to fraction form
    346,958.28/520,437.54 = 97,640.28/x
  3. Step 3: Cross multiply
    346,958.28x = 520,437.54 × 97,640.28
  4. Step 4: Simplify right side
    346,958.28x = 50,815,667,128.11
  5. Step 5: Solve for x
    x = 50,815,667,128.11/346,958.28
  6. Step 6: Final answer
    x = 146,460.45

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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.