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Finding the Fourth Proportional to 459,855.95, 634,596.63 and 255,903.38

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Solution

The fourth proportional to 459,855.95, 634,596.63 and 255,903.38 is: 353,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,855.95 : 634,596.63 = 255,903.38 : x
  2. Step 2: Convert to fraction form
    459,855.95/634,596.63 = 255,903.38/x
  3. Step 3: Cross multiply
    459,855.95x = 634,596.63 × 255,903.38
  4. Step 4: Simplify right side
    459,855.95x = 162,395,423,031.73
  5. Step 5: Solve for x
    x = 162,395,423,031.73/459,855.95
  6. Step 6: Final answer
    x = 353,144.11

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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.