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Finding the Fourth Proportional to 708,167.79, 977,258.91 and 385,880.67

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Solution

The fourth proportional to 708,167.79, 977,258.91 and 385,880.67 is: 532,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,167.79 : 977,258.91 = 385,880.67 : x
  2. Step 2: Convert to fraction form
    708,167.79/977,258.91 = 385,880.67/x
  3. Step 3: Cross multiply
    708,167.79x = 977,258.91 × 385,880.67
  4. Step 4: Simplify right side
    708,167.79x = 377,105,322,954.27
  5. Step 5: Solve for x
    x = 377,105,322,954.27/708,167.79
  6. Step 6: Final answer
    x = 532,508.44

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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.