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Finding the Fourth Proportional to 708,205.44, 977,334.48 and 385,915.44

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Solution

The fourth proportional to 708,205.44, 977,334.48 and 385,915.44 is: 532,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,205.44 : 977,334.48 = 385,915.44 : x
  2. Step 2: Convert to fraction form
    708,205.44/977,334.48 = 385,915.44/x
  3. Step 3: Cross multiply
    708,205.44x = 977,334.48 × 385,915.44
  4. Step 4: Simplify right side
    708,205.44x = 377,168,465,876.37
  5. Step 5: Solve for x
    x = 377,168,465,876.37/708,205.44
  6. Step 6: Final answer
    x = 532,569.29

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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.