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Finding the Fourth Proportional to 934,716, 1,289,999.10 and 552,865.80

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Solution

The fourth proportional to 934,716, 1,289,999.10 and 552,865.80 is: 763,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,716 : 1,289,999.10 = 552,865.80 : x
  2. Step 2: Convert to fraction form
    934,716/1,289,999.10 = 552,865.80/x
  3. Step 3: Cross multiply
    934,716x = 1,289,999.10 × 552,865.80
  4. Step 4: Simplify right side
    934,716x = 713,196,384,420.78
  5. Step 5: Solve for x
    x = 713,196,384,420.78/934,716
  6. Step 6: Final answer
    x = 763,008.64

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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.