Home / 554,130.25-831,195.36-427,954.52

Finding the Fourth Proportional to 554,130.25, 831,195.36 and 427,954.52

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Solution

The fourth proportional to 554,130.25, 831,195.36 and 427,954.52 is: 641,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,130.25 : 831,195.36 = 427,954.52 : x
  2. Step 2: Convert to fraction form
    554,130.25/831,195.36 = 427,954.52/x
  3. Step 3: Cross multiply
    554,130.25x = 831,195.36 × 427,954.52
  4. Step 4: Simplify right side
    554,130.25x = 355,713,811,315.03
  5. Step 5: Solve for x
    x = 355,713,811,315.03/554,130.25
  6. Step 6: Final answer
    x = 641,931.77

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.