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Finding the Fourth Proportional to 704,421.50, 970,759.28 and 691,465.34

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Solution

The fourth proportional to 704,421.50, 970,759.28 and 691,465.34 is: 952,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,421.50 : 970,759.28 = 691,465.34 : x
  2. Step 2: Convert to fraction form
    704,421.50/970,759.28 = 691,465.34/x
  3. Step 3: Cross multiply
    704,421.50x = 970,759.28 × 691,465.34
  4. Step 4: Simplify right side
    704,421.50x = 671,246,399,758.92
  5. Step 5: Solve for x
    x = 671,246,399,758.92/704,421.50
  6. Step 6: Final answer
    x = 952,904.48

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1.5x scale

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.