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Finding the Fourth Proportional to 520,426.08, 718,205.40 and 294,086.16

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Solution

The fourth proportional to 520,426.08, 718,205.40 and 294,086.16 is: 405,848.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,426.08 : 718,205.40 = 294,086.16 : x
  2. Step 2: Convert to fraction form
    520,426.08/718,205.40 = 294,086.16/x
  3. Step 3: Cross multiply
    520,426.08x = 718,205.40 × 294,086.16
  4. Step 4: Simplify right side
    520,426.08x = 211,214,268,177.26
  5. Step 5: Solve for x
    x = 211,214,268,177.26/520,426.08
  6. Step 6: Final answer
    x = 405,848.74

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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.