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Finding the Fourth Proportional to 683,490.77, 943,225.17 and 377,560.80

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Solution

The fourth proportional to 683,490.77, 943,225.17 and 377,560.80 is: 521,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,490.77 : 943,225.17 = 377,560.80 : x
  2. Step 2: Convert to fraction form
    683,490.77/943,225.17 = 377,560.80/x
  3. Step 3: Cross multiply
    683,490.77x = 943,225.17 × 377,560.80
  4. Step 4: Simplify right side
    683,490.77x = 356,124,849,765.34
  5. Step 5: Solve for x
    x = 356,124,849,765.34/683,490.77
  6. Step 6: Final answer
    x = 521,038.28

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Double scale
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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.