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Finding the Fourth Proportional to 517,324.40, 771,417.94 and 454,401.98

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Solution

The fourth proportional to 517,324.40, 771,417.94 and 454,401.98 is: 677,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,324.40 : 771,417.94 = 454,401.98 : x
  2. Step 2: Convert to fraction form
    517,324.40/771,417.94 = 454,401.98/x
  3. Step 3: Cross multiply
    517,324.40x = 771,417.94 × 454,401.98
  4. Step 4: Simplify right side
    517,324.40x = 350,533,839,343.52
  5. Step 5: Solve for x
    x = 350,533,839,343.52/517,324.40
  6. Step 6: Final answer
    x = 677,590.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.