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Finding the Fourth Proportional to 450,278.50, 621,389.22 and 246,325.02

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Solution

The fourth proportional to 450,278.50, 621,389.22 and 246,325.02 is: 339,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,278.50 : 621,389.22 = 246,325.02 : x
  2. Step 2: Convert to fraction form
    450,278.50/621,389.22 = 246,325.02/x
  3. Step 3: Cross multiply
    450,278.50x = 621,389.22 × 246,325.02
  4. Step 4: Simplify right side
    450,278.50x = 153,063,712,044.28
  5. Step 5: Solve for x
    x = 153,063,712,044.28/450,278.50
  6. Step 6: Final answer
    x = 339,931.20

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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.