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Finding the Fourth Proportional to 319,685.64, 479,528.30 and 95,045.10

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Solution

The fourth proportional to 319,685.64, 479,528.30 and 95,045.10 is: 142,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,685.64 : 479,528.30 = 95,045.10 : x
  2. Step 2: Convert to fraction form
    319,685.64/479,528.30 = 95,045.10/x
  3. Step 3: Cross multiply
    319,685.64x = 479,528.30 × 95,045.10
  4. Step 4: Simplify right side
    319,685.64x = 45,576,815,226.33
  5. Step 5: Solve for x
    x = 45,576,815,226.33/319,685.64
  6. Step 6: Final answer
    x = 142,567.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.