Home / 839,385.36-1,158,351.84-457,412.04

Finding the Fourth Proportional to 839,385.36, 1,158,351.84 and 457,412.04

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Solution

The fourth proportional to 839,385.36, 1,158,351.84 and 457,412.04 is: 631,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,385.36 : 1,158,351.84 = 457,412.04 : x
  2. Step 2: Convert to fraction form
    839,385.36/1,158,351.84 = 457,412.04/x
  3. Step 3: Cross multiply
    839,385.36x = 1,158,351.84 × 457,412.04
  4. Step 4: Simplify right side
    839,385.36x = 529,844,078,172.15
  5. Step 5: Solve for x
    x = 529,844,078,172.15/839,385.36
  6. Step 6: Final answer
    x = 631,228.64

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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.