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Finding the Fourth Proportional to 671,495.04, 926,660.16 and 369,688.80

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Solution

The fourth proportional to 671,495.04, 926,660.16 and 369,688.80 is: 510,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,495.04 : 926,660.16 = 369,688.80 : x
  2. Step 2: Convert to fraction form
    671,495.04/926,660.16 = 369,688.80/x
  3. Step 3: Cross multiply
    671,495.04x = 926,660.16 × 369,688.80
  4. Step 4: Simplify right side
    671,495.04x = 342,575,882,558.21
  5. Step 5: Solve for x
    x = 342,575,882,558.21/671,495.04
  6. Step 6: Final answer
    x = 510,168.90

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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.