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Finding the Fourth Proportional to 713,649.52, 1,074,750.60 and 649,876.60

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Solution

The fourth proportional to 713,649.52, 1,074,750.60 and 649,876.60 is: 978,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,649.52 : 1,074,750.60 = 649,876.60 : x
  2. Step 2: Convert to fraction form
    713,649.52/1,074,750.60 = 649,876.60/x
  3. Step 3: Cross multiply
    713,649.52x = 1,074,750.60 × 649,876.60
  4. Step 4: Simplify right side
    713,649.52x = 698,455,265,775.96
  5. Step 5: Solve for x
    x = 698,455,265,775.96/713,649.52
  6. Step 6: Final answer
    x = 978,709.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.