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Finding the Fourth Proportional to 549,960.40, 825,596.70 and 310,265.20

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Solution

The fourth proportional to 549,960.40, 825,596.70 and 310,265.20 is: 465,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,960.40 : 825,596.70 = 310,265.20 : x
  2. Step 2: Convert to fraction form
    549,960.40/825,596.70 = 310,265.20/x
  3. Step 3: Cross multiply
    549,960.40x = 825,596.70 × 310,265.20
  4. Step 4: Simplify right side
    549,960.40x = 256,153,925,244.84
  5. Step 5: Solve for x
    x = 256,153,925,244.84/549,960.40
  6. Step 6: Final answer
    x = 465,767.94

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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.