Home / 642,120.64-886,052.46-370,186.36

Finding the Fourth Proportional to 642,120.64, 886,052.46 and 370,186.36

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Solution

The fourth proportional to 642,120.64, 886,052.46 and 370,186.36 is: 510,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,120.64 : 886,052.46 = 370,186.36 : x
  2. Step 2: Convert to fraction form
    642,120.64/886,052.46 = 370,186.36/x
  3. Step 3: Cross multiply
    642,120.64x = 886,052.46 × 370,186.36
  4. Step 4: Simplify right side
    642,120.64x = 328,004,534,936.45
  5. Step 5: Solve for x
    x = 328,004,534,936.45/642,120.64
  6. Step 6: Final answer
    x = 510,814.50

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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.