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Finding the Fourth Proportional to 703,855.40, 971,697.32 and 550,567.89

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Solution

The fourth proportional to 703,855.40, 971,697.32 and 550,567.89 is: 760,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,855.40 : 971,697.32 = 550,567.89 : x
  2. Step 2: Convert to fraction form
    703,855.40/971,697.32 = 550,567.89/x
  3. Step 3: Cross multiply
    703,855.40x = 971,697.32 × 550,567.89
  4. Step 4: Simplify right side
    703,855.40x = 534,985,340,438.22
  5. Step 5: Solve for x
    x = 534,985,340,438.22/703,855.40
  6. Step 6: Final answer
    x = 760,078.48

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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.