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Finding the Fourth Proportional to 505,031.08, 699,952.72 and 495,583.24

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Solution

The fourth proportional to 505,031.08, 699,952.72 and 495,583.24 is: 686,858.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,031.08 : 699,952.72 = 495,583.24 : x
  2. Step 2: Convert to fraction form
    505,031.08/699,952.72 = 495,583.24/x
  3. Step 3: Cross multiply
    505,031.08x = 699,952.72 × 495,583.24
  4. Step 4: Simplify right side
    505,031.08x = 346,884,836,824.41
  5. Step 5: Solve for x
    x = 346,884,836,824.41/505,031.08
  6. Step 6: Final answer
    x = 686,858.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.