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Finding the Fourth Proportional to 683,478.16, 943,208.62 and 377,553.31

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Solution

The fourth proportional to 683,478.16, 943,208.62 and 377,553.31 is: 521,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,478.16 : 943,208.62 = 377,553.31 : x
  2. Step 2: Convert to fraction form
    683,478.16/943,208.62 = 377,553.31/x
  3. Step 3: Cross multiply
    683,478.16x = 943,208.62 × 377,553.31
  4. Step 4: Simplify right side
    683,478.16x = 356,111,533,199.63
  5. Step 5: Solve for x
    x = 356,111,533,199.63/683,478.16
  6. Step 6: Final answer
    x = 521,028.40

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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.