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Finding the Fourth Proportional to 506,689.02, 699,099.66 and 302,656.50

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Solution

The fourth proportional to 506,689.02, 699,099.66 and 302,656.50 is: 417,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,689.02 : 699,099.66 = 302,656.50 : x
  2. Step 2: Convert to fraction form
    506,689.02/699,099.66 = 302,656.50/x
  3. Step 3: Cross multiply
    506,689.02x = 699,099.66 × 302,656.50
  4. Step 4: Simplify right side
    506,689.02x = 211,587,056,246.79
  5. Step 5: Solve for x
    x = 211,587,056,246.79/506,689.02
  6. Step 6: Final answer
    x = 417,587.61

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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.