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Finding the Fourth Proportional to 695,219.70, 975,407.10 and 695,219.70

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Solution

The fourth proportional to 695,219.70, 975,407.10 and 695,219.70 is: 975,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,219.70 : 975,407.10 = 695,219.70 : x
  2. Step 2: Convert to fraction form
    695,219.70/975,407.10 = 695,219.70/x
  3. Step 3: Cross multiply
    695,219.70x = 975,407.10 × 695,219.70
  4. Step 4: Simplify right side
    695,219.70x = 678,122,231,439.87
  5. Step 5: Solve for x
    x = 678,122,231,439.87/695,219.70
  6. Step 6: Final answer
    x = 975,407.10

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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.