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Finding the Fourth Proportional to 319,479.34, 440,866.64 and 183,417.54

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Solution

The fourth proportional to 319,479.34, 440,866.64 and 183,417.54 is: 253,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,479.34 : 440,866.64 = 183,417.54 : x
  2. Step 2: Convert to fraction form
    319,479.34/440,866.64 = 183,417.54/x
  3. Step 3: Cross multiply
    319,479.34x = 440,866.64 × 183,417.54
  4. Step 4: Simplify right side
    319,479.34x = 80,862,674,576.87
  5. Step 5: Solve for x
    x = 80,862,674,576.87/319,479.34
  6. Step 6: Final answer
    x = 253,107.68

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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.