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Finding the Fourth Proportional to 944,855.30, 1,303,920 and 531,400.08

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Solution

The fourth proportional to 944,855.30, 1,303,920 and 531,400.08 is: 733,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,855.30 : 1,303,920 = 531,400.08 : x
  2. Step 2: Convert to fraction form
    944,855.30/1,303,920 = 531,400.08/x
  3. Step 3: Cross multiply
    944,855.30x = 1,303,920 × 531,400.08
  4. Step 4: Simplify right side
    944,855.30x = 692,903,192,313.60
  5. Step 5: Solve for x
    x = 692,903,192,313.60/944,855.30
  6. Step 6: Final answer
    x = 733,343.18

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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.