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Finding the Fourth Proportional to 713,921.01, 985,594.74 and 551,419.32

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Solution

The fourth proportional to 713,921.01, 985,594.74 and 551,419.32 is: 761,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,921.01 : 985,594.74 = 551,419.32 : x
  2. Step 2: Convert to fraction form
    713,921.01/985,594.74 = 551,419.32/x
  3. Step 3: Cross multiply
    713,921.01x = 985,594.74 × 551,419.32
  4. Step 4: Simplify right side
    713,921.01x = 543,475,981,326.38
  5. Step 5: Solve for x
    x = 543,475,981,326.38/713,921.01
  6. Step 6: Final answer
    x = 761,255.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.