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Finding the Fourth Proportional to 570,241.16, 786,991.38 and 328,532.84

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Solution

The fourth proportional to 570,241.16, 786,991.38 and 328,532.84 is: 453,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,241.16 : 786,991.38 = 328,532.84 : x
  2. Step 2: Convert to fraction form
    570,241.16/786,991.38 = 328,532.84/x
  3. Step 3: Cross multiply
    570,241.16x = 786,991.38 × 328,532.84
  4. Step 4: Simplify right side
    570,241.16x = 258,552,513,126.92
  5. Step 5: Solve for x
    x = 258,552,513,126.92/570,241.16
  6. Step 6: Final answer
    x = 453,409.07

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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.