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Finding the Fourth Proportional to 922,609.20, 1,384,302.60 and 502,186.80

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Solution

The fourth proportional to 922,609.20, 1,384,302.60 and 502,186.80 is: 753,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,609.20 : 1,384,302.60 = 502,186.80 : x
  2. Step 2: Convert to fraction form
    922,609.20/1,384,302.60 = 502,186.80/x
  3. Step 3: Cross multiply
    922,609.20x = 1,384,302.60 × 502,186.80
  4. Step 4: Simplify right side
    922,609.20x = 695,178,492,925.68
  5. Step 5: Solve for x
    x = 695,178,492,925.68/922,609.20
  6. Step 6: Final answer
    x = 753,491.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.