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Finding the Fourth Proportional to 346,570.70, 520,086.45 and 196,810.70

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Solution

The fourth proportional to 346,570.70, 520,086.45 and 196,810.70 is: 295,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,570.70 : 520,086.45 = 196,810.70 : x
  2. Step 2: Convert to fraction form
    346,570.70/520,086.45 = 196,810.70/x
  3. Step 3: Cross multiply
    346,570.70x = 520,086.45 × 196,810.70
  4. Step 4: Simplify right side
    346,570.70x = 102,358,578,285.02
  5. Step 5: Solve for x
    x = 102,358,578,285.02/346,570.70
  6. Step 6: Final answer
    x = 295,346.89

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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.