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Finding the Fourth Proportional to 630,756.81, 946,553.09 and 346,645.77

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Solution

The fourth proportional to 630,756.81, 946,553.09 and 346,645.77 is: 520,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,756.81 : 946,553.09 = 346,645.77 : x
  2. Step 2: Convert to fraction form
    630,756.81/946,553.09 = 346,645.77/x
  3. Step 3: Cross multiply
    630,756.81x = 946,553.09 × 346,645.77
  4. Step 4: Simplify right side
    630,756.81x = 328,118,624,728.93
  5. Step 5: Solve for x
    x = 328,118,624,728.93/630,756.81
  6. Step 6: Final answer
    x = 520,198.31

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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.