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Finding the Fourth Proportional to 331,386.68, 457,318.68 and 180,483.68

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Solution

The fourth proportional to 331,386.68, 457,318.68 and 180,483.68 is: 249,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,386.68 : 457,318.68 = 180,483.68 : x
  2. Step 2: Convert to fraction form
    331,386.68/457,318.68 = 180,483.68/x
  3. Step 3: Cross multiply
    331,386.68x = 457,318.68 × 180,483.68
  4. Step 4: Simplify right side
    331,386.68x = 82,538,558,299.14
  5. Step 5: Solve for x
    x = 82,538,558,299.14/331,386.68
  6. Step 6: Final answer
    x = 249,070.24

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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.