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Finding the Fourth Proportional to 1,194,507, 1,648,779.91 and 812,755.22

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Solution

The fourth proportional to 1,194,507, 1,648,779.91 and 812,755.22 is: 1,121,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,507 : 1,648,779.91 = 812,755.22 : x
  2. Step 2: Convert to fraction form
    1,194,507/1,648,779.91 = 812,755.22/x
  3. Step 3: Cross multiply
    1,194,507x = 1,648,779.91 × 812,755.22
  4. Step 4: Simplify right side
    1,194,507x = 1,340,054,468,207.84
  5. Step 5: Solve for x
    x = 1,340,054,468,207.84/1,194,507
  6. Step 6: Final answer
    x = 1,121,847.31

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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.