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Finding the Fourth Proportional to 922,898.60, 1,384,088.70 and 292,005.80

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Solution

The fourth proportional to 922,898.60, 1,384,088.70 and 292,005.80 is: 437,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,898.60 : 1,384,088.70 = 292,005.80 : x
  2. Step 2: Convert to fraction form
    922,898.60/1,384,088.70 = 292,005.80/x
  3. Step 3: Cross multiply
    922,898.60x = 1,384,088.70 × 292,005.80
  4. Step 4: Simplify right side
    922,898.60x = 404,161,928,114.46
  5. Step 5: Solve for x
    x = 404,161,928,114.46/922,898.60
  6. Step 6: Final answer
    x = 437,926.69

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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.