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Finding the Fourth Proportional to 695,123.90, 970,811.50 and 695,123.90

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Solution

The fourth proportional to 695,123.90, 970,811.50 and 695,123.90 is: 970,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,123.90 : 970,811.50 = 695,123.90 : x
  2. Step 2: Convert to fraction form
    695,123.90/970,811.50 = 695,123.90/x
  3. Step 3: Cross multiply
    695,123.90x = 970,811.50 × 695,123.90
  4. Step 4: Simplify right side
    695,123.90x = 674,834,276,044.85
  5. Step 5: Solve for x
    x = 674,834,276,044.85/695,123.90
  6. Step 6: Final answer
    x = 970,811.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.