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Finding the Fourth Proportional to 676,808.01, 933,995.21 and 404,887.23

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Solution

The fourth proportional to 676,808.01, 933,995.21 and 404,887.23 is: 558,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,808.01 : 933,995.21 = 404,887.23 : x
  2. Step 2: Convert to fraction form
    676,808.01/933,995.21 = 404,887.23/x
  3. Step 3: Cross multiply
    676,808.01x = 933,995.21 × 404,887.23
  4. Step 4: Simplify right side
    676,808.01x = 378,162,731,385.73
  5. Step 5: Solve for x
    x = 378,162,731,385.73/676,808.01
  6. Step 6: Final answer
    x = 558,744.47

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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.