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Finding the Fourth Proportional to 532,378.08, 734,672.04 and 302,930.40

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Solution

The fourth proportional to 532,378.08, 734,672.04 and 302,930.40 is: 418,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,378.08 : 734,672.04 = 302,930.40 : x
  2. Step 2: Convert to fraction form
    532,378.08/734,672.04 = 302,930.40/x
  3. Step 3: Cross multiply
    532,378.08x = 734,672.04 × 302,930.40
  4. Step 4: Simplify right side
    532,378.08x = 222,554,494,946.02
  5. Step 5: Solve for x
    x = 222,554,494,946.02/532,378.08
  6. Step 6: Final answer
    x = 418,038.43

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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.