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Finding the Fourth Proportional to 934,063, 1,289,008.40 and 531,655

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Solution

The fourth proportional to 934,063, 1,289,008.40 and 531,655 is: 733,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,063 : 1,289,008.40 = 531,655 : x
  2. Step 2: Convert to fraction form
    934,063/1,289,008.40 = 531,655/x
  3. Step 3: Cross multiply
    934,063x = 1,289,008.40 × 531,655
  4. Step 4: Simplify right side
    934,063x = 685,307,760,902
  5. Step 5: Solve for x
    x = 685,307,760,902/934,063
  6. Step 6: Final answer
    x = 733,684.73

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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.