Home / 554,127.82-831,191.73-427,952.10

Finding the Fourth Proportional to 554,127.82, 831,191.73 and 427,952.10

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Solution

The fourth proportional to 554,127.82, 831,191.73 and 427,952.10 is: 641,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,127.82 : 831,191.73 = 427,952.10 : x
  2. Step 2: Convert to fraction form
    554,127.82/831,191.73 = 427,952.10/x
  3. Step 3: Cross multiply
    554,127.82x = 831,191.73 × 427,952.10
  4. Step 4: Simplify right side
    554,127.82x = 355,710,246,356.13
  5. Step 5: Solve for x
    x = 355,710,246,356.13/554,127.82
  6. Step 6: Final answer
    x = 641,928.15

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Double scale
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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.