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Finding the Fourth Proportional to 535,833.76, 740,064.28 and 352,890.12

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Solution

The fourth proportional to 535,833.76, 740,064.28 and 352,890.12 is: 487,392.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,833.76 : 740,064.28 = 352,890.12 : x
  2. Step 2: Convert to fraction form
    535,833.76/740,064.28 = 352,890.12/x
  3. Step 3: Cross multiply
    535,833.76x = 740,064.28 × 352,890.12
  4. Step 4: Simplify right side
    535,833.76x = 261,161,372,576.91
  5. Step 5: Solve for x
    x = 261,161,372,576.91/535,833.76
  6. Step 6: Final answer
    x = 487,392.53

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1.5x scale

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.