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Finding the Fourth Proportional to 714,703.92, 986,310.70 and 404,582.44

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Solution

The fourth proportional to 714,703.92, 986,310.70 and 404,582.44 is: 558,334.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,703.92 : 986,310.70 = 404,582.44 : x
  2. Step 2: Convert to fraction form
    714,703.92/986,310.70 = 404,582.44/x
  3. Step 3: Cross multiply
    714,703.92x = 986,310.70 × 404,582.44
  4. Step 4: Simplify right side
    714,703.92x = 399,043,989,604.11
  5. Step 5: Solve for x
    x = 399,043,989,604.11/714,703.92
  6. Step 6: Final answer
    x = 558,334.69

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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.