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Finding the Fourth Proportional to 535,358.81, 803,000.63 and 251,111.70

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Solution

The fourth proportional to 535,358.81, 803,000.63 and 251,111.70 is: 376,649.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,358.81 : 803,000.63 = 251,111.70 : x
  2. Step 2: Convert to fraction form
    535,358.81/803,000.63 = 251,111.70/x
  3. Step 3: Cross multiply
    535,358.81x = 803,000.63 × 251,111.70
  4. Step 4: Simplify right side
    535,358.81x = 201,642,853,928.15
  5. Step 5: Solve for x
    x = 201,642,853,928.15/535,358.81
  6. Step 6: Final answer
    x = 376,649.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.