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Finding the Fourth Proportional to 346,694.70, 520,042.05 and 307,296.30

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Solution

The fourth proportional to 346,694.70, 520,042.05 and 307,296.30 is: 460,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,694.70 : 520,042.05 = 307,296.30 : x
  2. Step 2: Convert to fraction form
    346,694.70/520,042.05 = 307,296.30/x
  3. Step 3: Cross multiply
    346,694.70x = 520,042.05 × 307,296.30
  4. Step 4: Simplify right side
    346,694.70x = 159,806,997,809.42
  5. Step 5: Solve for x
    x = 159,806,997,809.42/346,694.70
  6. Step 6: Final answer
    x = 460,944.45

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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.