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Finding the Fourth Proportional to 516,776.60, 713,191.65 and 310,052.77

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Solution

The fourth proportional to 516,776.60, 713,191.65 and 310,052.77 is: 427,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,776.60 : 713,191.65 = 310,052.77 : x
  2. Step 2: Convert to fraction form
    516,776.60/713,191.65 = 310,052.77/x
  3. Step 3: Cross multiply
    516,776.60x = 713,191.65 × 310,052.77
  4. Step 4: Simplify right side
    516,776.60x = 221,127,046,233.99
  5. Step 5: Solve for x
    x = 221,127,046,233.99/516,776.60
  6. Step 6: Final answer
    x = 427,896.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.