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Finding the Fourth Proportional to 572,202.72, 789,624.72 and 317,547.36

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Solution

The fourth proportional to 572,202.72, 789,624.72 and 317,547.36 is: 438,207.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,202.72 : 789,624.72 = 317,547.36 : x
  2. Step 2: Convert to fraction form
    572,202.72/789,624.72 = 317,547.36/x
  3. Step 3: Cross multiply
    572,202.72x = 789,624.72 × 317,547.36
  4. Step 4: Simplify right side
    572,202.72x = 250,743,245,226.74
  5. Step 5: Solve for x
    x = 250,743,245,226.74/572,202.72
  6. Step 6: Final answer
    x = 438,207.01

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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.