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Finding the Fourth Proportional to 633,247.68, 873,855.55 and 346,762.83

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Solution

The fourth proportional to 633,247.68, 873,855.55 and 346,762.83 is: 478,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,247.68 : 873,855.55 = 346,762.83 : x
  2. Step 2: Convert to fraction form
    633,247.68/873,855.55 = 346,762.83/x
  3. Step 3: Cross multiply
    633,247.68x = 873,855.55 × 346,762.83
  4. Step 4: Simplify right side
    633,247.68x = 303,020,617,426.12
  5. Step 5: Solve for x
    x = 303,020,617,426.12/633,247.68
  6. Step 6: Final answer
    x = 478,518.33

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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.