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Finding the Fourth Proportional to 676,777.78, 933,953.34 and 374,971.78

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Solution

The fourth proportional to 676,777.78, 933,953.34 and 374,971.78 is: 517,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,777.78 : 933,953.34 = 374,971.78 : x
  2. Step 2: Convert to fraction form
    676,777.78/933,953.34 = 374,971.78/x
  3. Step 3: Cross multiply
    676,777.78x = 933,953.34 × 374,971.78
  4. Step 4: Simplify right side
    676,777.78x = 350,206,146,801.12
  5. Step 5: Solve for x
    x = 350,206,146,801.12/676,777.78
  6. Step 6: Final answer
    x = 517,461.06

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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.