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Finding the Fourth Proportional to 572,347.80, 789,843.02 and 357,612.39

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Solution

The fourth proportional to 572,347.80, 789,843.02 and 357,612.39 is: 493,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,347.80 : 789,843.02 = 357,612.39 : x
  2. Step 2: Convert to fraction form
    572,347.80/789,843.02 = 357,612.39/x
  3. Step 3: Cross multiply
    572,347.80x = 789,843.02 × 357,612.39
  4. Step 4: Simplify right side
    572,347.80x = 282,457,648,318.96
  5. Step 5: Solve for x
    x = 282,457,648,318.96/572,347.80
  6. Step 6: Final answer
    x = 493,507.00

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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.