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Finding the Fourth Proportional to 673,192.16, 928,940.64 and 371,366.72

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Solution

The fourth proportional to 673,192.16, 928,940.64 and 371,366.72 is: 512,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,192.16 : 928,940.64 = 371,366.72 : x
  2. Step 2: Convert to fraction form
    673,192.16/928,940.64 = 371,366.72/x
  3. Step 3: Cross multiply
    673,192.16x = 928,940.64 × 371,366.72
  4. Step 4: Simplify right side
    673,192.16x = 344,977,638,551.50
  5. Step 5: Solve for x
    x = 344,977,638,551.50/673,192.16
  6. Step 6: Final answer
    x = 512,450.47

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1.5x scale

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.