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Finding the Fourth Proportional to 575,357.20, 856,242.47 and 556,199.71

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Solution

The fourth proportional to 575,357.20, 856,242.47 and 556,199.71 is: 827,732.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,357.20 : 856,242.47 = 556,199.71 : x
  2. Step 2: Convert to fraction form
    575,357.20/856,242.47 = 556,199.71/x
  3. Step 3: Cross multiply
    575,357.20x = 856,242.47 × 556,199.71
  4. Step 4: Simplify right side
    575,357.20x = 476,241,812,753.58
  5. Step 5: Solve for x
    x = 476,241,812,753.58/575,357.20
  6. Step 6: Final answer
    x = 827,732.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.