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Finding the Fourth Proportional to 708,157.73, 977,257.77 and 385,867.91

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Solution

The fourth proportional to 708,157.73, 977,257.77 and 385,867.91 is: 532,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,157.73 : 977,257.77 = 385,867.91 : x
  2. Step 2: Convert to fraction form
    708,157.73/977,257.77 = 385,867.91/x
  3. Step 3: Cross multiply
    708,157.73x = 977,257.77 × 385,867.91
  4. Step 4: Simplify right side
    708,157.73x = 377,092,413,241.16
  5. Step 5: Solve for x
    x = 377,092,413,241.16/708,157.73
  6. Step 6: Final answer
    x = 532,497.77

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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.