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Finding the Fourth Proportional to 696,915.96, 960,726.02 and 492,606.42

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Solution

The fourth proportional to 696,915.96, 960,726.02 and 492,606.42 is: 679,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,915.96 : 960,726.02 = 492,606.42 : x
  2. Step 2: Convert to fraction form
    696,915.96/960,726.02 = 492,606.42/x
  3. Step 3: Cross multiply
    696,915.96x = 960,726.02 × 492,606.42
  4. Step 4: Simplify right side
    696,915.96x = 473,259,800,509.42
  5. Step 5: Solve for x
    x = 473,259,800,509.42/696,915.96
  6. Step 6: Final answer
    x = 679,077.29

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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.