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Finding the Fourth Proportional to 556,986.18, 768,641.85 and 302,337.30

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Solution

The fourth proportional to 556,986.18, 768,641.85 and 302,337.30 is: 417,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,986.18 : 768,641.85 = 302,337.30 : x
  2. Step 2: Convert to fraction form
    556,986.18/768,641.85 = 302,337.30/x
  3. Step 3: Cross multiply
    556,986.18x = 768,641.85 × 302,337.30
  4. Step 4: Simplify right side
    556,986.18x = 232,389,101,596.01
  5. Step 5: Solve for x
    x = 232,389,101,596.01/556,986.18
  6. Step 6: Final answer
    x = 417,225.97

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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.