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Finding the Fourth Proportional to 701,638.79, 968,411.75 and 443,351.76

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Solution

The fourth proportional to 701,638.79, 968,411.75 and 443,351.76 is: 611,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,638.79 : 968,411.75 = 443,351.76 : x
  2. Step 2: Convert to fraction form
    701,638.79/968,411.75 = 443,351.76/x
  3. Step 3: Cross multiply
    701,638.79x = 968,411.75 × 443,351.76
  4. Step 4: Simplify right side
    701,638.79x = 429,347,051,550.42
  5. Step 5: Solve for x
    x = 429,347,051,550.42/701,638.79
  6. Step 6: Final answer
    x = 611,920.35

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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.