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Finding the Fourth Proportional to 346,842.76, 520,313.60 and 106,976.80

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Solution

The fourth proportional to 346,842.76, 520,313.60 and 106,976.80 is: 160,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,842.76 : 520,313.60 = 106,976.80 : x
  2. Step 2: Convert to fraction form
    346,842.76/520,313.60 = 106,976.80/x
  3. Step 3: Cross multiply
    346,842.76x = 520,313.60 × 106,976.80
  4. Step 4: Simplify right side
    346,842.76x = 55,661,483,924.48
  5. Step 5: Solve for x
    x = 55,661,483,924.48/346,842.76
  6. Step 6: Final answer
    x = 160,480.45

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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.