Home / 839,136.20-1,158,004.50-457,161.80

Finding the Fourth Proportional to 839,136.20, 1,158,004.50 and 457,161.80

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Solution

The fourth proportional to 839,136.20, 1,158,004.50 and 457,161.80 is: 630,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,136.20 : 1,158,004.50 = 457,161.80 : x
  2. Step 2: Convert to fraction form
    839,136.20/1,158,004.50 = 457,161.80/x
  3. Step 3: Cross multiply
    839,136.20x = 1,158,004.50 × 457,161.80
  4. Step 4: Simplify right side
    839,136.20x = 529,395,421,628.10
  5. Step 5: Solve for x
    x = 529,395,421,628.10/839,136.20
  6. Step 6: Final answer
    x = 630,881.40

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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.