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Finding the Fourth Proportional to 695,280.20, 975,491.80 and 695,280.20

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Solution

The fourth proportional to 695,280.20, 975,491.80 and 695,280.20 is: 975,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,280.20 : 975,491.80 = 695,280.20 : x
  2. Step 2: Convert to fraction form
    695,280.20/975,491.80 = 695,280.20/x
  3. Step 3: Cross multiply
    695,280.20x = 975,491.80 × 695,280.20
  4. Step 4: Simplify right side
    695,280.20x = 678,240,133,802.36
  5. Step 5: Solve for x
    x = 678,240,133,802.36/695,280.20
  6. Step 6: Final answer
    x = 975,491.80

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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.