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Finding the Fourth Proportional to 719,383.98, 992,750.04 and 397,094.16

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Solution

The fourth proportional to 719,383.98, 992,750.04 and 397,094.16 is: 547,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,383.98 : 992,750.04 = 397,094.16 : x
  2. Step 2: Convert to fraction form
    719,383.98/992,750.04 = 397,094.16/x
  3. Step 3: Cross multiply
    719,383.98x = 992,750.04 × 397,094.16
  4. Step 4: Simplify right side
    719,383.98x = 394,215,243,223.77
  5. Step 5: Solve for x
    x = 394,215,243,223.77/719,383.98
  6. Step 6: Final answer
    x = 547,990.02

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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.