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Finding the Fourth Proportional to 570,126.30, 786,857.76 and 328,361.82

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Solution

The fourth proportional to 570,126.30, 786,857.76 and 328,361.82 is: 453,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,126.30 : 786,857.76 = 328,361.82 : x
  2. Step 2: Convert to fraction form
    570,126.30/786,857.76 = 328,361.82/x
  3. Step 3: Cross multiply
    570,126.30x = 786,857.76 × 328,361.82
  4. Step 4: Simplify right side
    570,126.30x = 258,374,046,154.72
  5. Step 5: Solve for x
    x = 258,374,046,154.72/570,126.30
  6. Step 6: Final answer
    x = 453,187.38

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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.