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Finding the Fourth Proportional to 695,127.40, 970,816.40 and 695,127.40

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Solution

The fourth proportional to 695,127.40, 970,816.40 and 695,127.40 is: 970,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,127.40 : 970,816.40 = 695,127.40 : x
  2. Step 2: Convert to fraction form
    695,127.40/970,816.40 = 695,127.40/x
  3. Step 3: Cross multiply
    695,127.40x = 970,816.40 × 695,127.40
  4. Step 4: Simplify right side
    695,127.40x = 674,841,080,009.36
  5. Step 5: Solve for x
    x = 674,841,080,009.36/695,127.40
  6. Step 6: Final answer
    x = 970,816.40

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Double scale
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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.