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Finding the Fourth Proportional to 713,173.69, 1,069,809.76 and 207,738.87

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Solution

The fourth proportional to 713,173.69, 1,069,809.76 and 207,738.87 is: 311,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,173.69 : 1,069,809.76 = 207,738.87 : x
  2. Step 2: Convert to fraction form
    713,173.69/1,069,809.76 = 207,738.87/x
  3. Step 3: Cross multiply
    713,173.69x = 1,069,809.76 × 207,738.87
  4. Step 4: Simplify right side
    713,173.69x = 222,241,070,657.37
  5. Step 5: Solve for x
    x = 222,241,070,657.37/713,173.69
  6. Step 6: Final answer
    x = 311,622.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.