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Finding the Fourth Proportional to 909,999.70, 1,364,999.55 and 732,852.70

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Solution

The fourth proportional to 909,999.70, 1,364,999.55 and 732,852.70 is: 1,099,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,999.70 : 1,364,999.55 = 732,852.70 : x
  2. Step 2: Convert to fraction form
    909,999.70/1,364,999.55 = 732,852.70/x
  3. Step 3: Cross multiply
    909,999.70x = 1,364,999.55 × 732,852.70
  4. Step 4: Simplify right side
    909,999.70x = 1,000,343,605,716.28
  5. Step 5: Solve for x
    x = 1,000,343,605,716.28/909,999.70
  6. Step 6: Final answer
    x = 1,099,279.05

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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.