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Finding the Fourth Proportional to 468,508.40, 646,533.76 and 253,646.72

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Solution

The fourth proportional to 468,508.40, 646,533.76 and 253,646.72 is: 350,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,508.40 : 646,533.76 = 253,646.72 : x
  2. Step 2: Convert to fraction form
    468,508.40/646,533.76 = 253,646.72/x
  3. Step 3: Cross multiply
    468,508.40x = 646,533.76 × 253,646.72
  4. Step 4: Simplify right side
    468,508.40x = 163,991,167,593.27
  5. Step 5: Solve for x
    x = 163,991,167,593.27/468,508.40
  6. Step 6: Final answer
    x = 350,028.23

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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.