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Finding the Fourth Proportional to 676,557.80, 933,649.70 and 404,625.68

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Solution

The fourth proportional to 676,557.80, 933,649.70 and 404,625.68 is: 558,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,557.80 : 933,649.70 = 404,625.68 : x
  2. Step 2: Convert to fraction form
    676,557.80/933,649.70 = 404,625.68/x
  3. Step 3: Cross multiply
    676,557.80x = 933,649.70 × 404,625.68
  4. Step 4: Simplify right side
    676,557.80x = 377,778,648,089.98
  5. Step 5: Solve for x
    x = 377,778,648,089.98/676,557.80
  6. Step 6: Final answer
    x = 558,383.41

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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.