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Finding the Fourth Proportional to 346,809.90, 520,264.40 and 106,944.06

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Solution

The fourth proportional to 346,809.90, 520,264.40 and 106,944.06 is: 160,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,809.90 : 520,264.40 = 106,944.06 : x
  2. Step 2: Convert to fraction form
    346,809.90/520,264.40 = 106,944.06/x
  3. Step 3: Cross multiply
    346,809.90x = 520,264.40 × 106,944.06
  4. Step 4: Simplify right side
    346,809.90x = 55,639,187,209.46
  5. Step 5: Solve for x
    x = 55,639,187,209.46/346,809.90
  6. Step 6: Final answer
    x = 160,431.37

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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.