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Finding the Fourth Proportional to 346,572.70, 520,089.45 and 196,812.70

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Solution

The fourth proportional to 346,572.70, 520,089.45 and 196,812.70 is: 295,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,572.70 : 520,089.45 = 196,812.70 : x
  2. Step 2: Convert to fraction form
    346,572.70/520,089.45 = 196,812.70/x
  3. Step 3: Cross multiply
    346,572.70x = 520,089.45 × 196,812.70
  4. Step 4: Simplify right side
    346,572.70x = 102,360,208,896.02
  5. Step 5: Solve for x
    x = 102,360,208,896.02/346,572.70
  6. Step 6: Final answer
    x = 295,349.89

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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.