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Finding the Fourth Proportional to 695,217.30, 974,703.90 and 695,217.30

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Solution

The fourth proportional to 695,217.30, 974,703.90 and 695,217.30 is: 974,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,217.30 : 974,703.90 = 695,217.30 : x
  2. Step 2: Convert to fraction form
    695,217.30/974,703.90 = 695,217.30/x
  3. Step 3: Cross multiply
    695,217.30x = 974,703.90 × 695,217.30
  4. Step 4: Simplify right side
    695,217.30x = 677,631,013,657.47
  5. Step 5: Solve for x
    x = 677,631,013,657.47/695,217.30
  6. Step 6: Final answer
    x = 974,703.90

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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.