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Finding the Fourth Proportional to 599,886.19, 899,647.53 and 315,423.46

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Solution

The fourth proportional to 599,886.19, 899,647.53 and 315,423.46 is: 473,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,886.19 : 899,647.53 = 315,423.46 : x
  2. Step 2: Convert to fraction form
    599,886.19/899,647.53 = 315,423.46/x
  3. Step 3: Cross multiply
    599,886.19x = 899,647.53 × 315,423.46
  4. Step 4: Simplify right side
    599,886.19x = 283,769,936,693.05
  5. Step 5: Solve for x
    x = 283,769,936,693.05/599,886.19
  6. Step 6: Final answer
    x = 473,039.62

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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.