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Finding the Fourth Proportional to 922,897.80, 1,384,227.90 and 291,875.40

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Solution

The fourth proportional to 922,897.80, 1,384,227.90 and 291,875.40 is: 437,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,897.80 : 1,384,227.90 = 291,875.40 : x
  2. Step 2: Convert to fraction form
    922,897.80/1,384,227.90 = 291,875.40/x
  3. Step 3: Cross multiply
    922,897.80x = 1,384,227.90 × 291,875.40
  4. Step 4: Simplify right side
    922,897.80x = 404,022,072,003.66
  5. Step 5: Solve for x
    x = 404,022,072,003.66/922,897.80
  6. Step 6: Final answer
    x = 437,775.53

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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.