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Finding the Fourth Proportional to 535,924.95, 803,275.91 and 215,871.87

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Solution

The fourth proportional to 535,924.95, 803,275.91 and 215,871.87 is: 323,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,924.95 : 803,275.91 = 215,871.87 : x
  2. Step 2: Convert to fraction form
    535,924.95/803,275.91 = 215,871.87/x
  3. Step 3: Cross multiply
    535,924.95x = 803,275.91 × 215,871.87
  4. Step 4: Simplify right side
    535,924.95x = 173,404,671,738.29
  5. Step 5: Solve for x
    x = 173,404,671,738.29/535,924.95
  6. Step 6: Final answer
    x = 323,561.48

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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.