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Finding the Fourth Proportional to 676,859.44, 933,818.92 and 404,935.20

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Solution

The fourth proportional to 676,859.44, 933,818.92 and 404,935.20 is: 558,662.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,859.44 : 933,818.92 = 404,935.20 : x
  2. Step 2: Convert to fraction form
    676,859.44/933,818.92 = 404,935.20/x
  3. Step 3: Cross multiply
    676,859.44x = 933,818.92 × 404,935.20
  4. Step 4: Simplify right side
    676,859.44x = 378,136,151,133.98
  5. Step 5: Solve for x
    x = 378,136,151,133.98/676,859.44
  6. Step 6: Final answer
    x = 558,662.74

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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.