Home / 856,053.90-1,284,605.73-383,139.18

Finding the Fourth Proportional to 856,053.90, 1,284,605.73 and 383,139.18

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Solution

The fourth proportional to 856,053.90, 1,284,605.73 and 383,139.18 is: 574,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,053.90 : 1,284,605.73 = 383,139.18 : x
  2. Step 2: Convert to fraction form
    856,053.90/1,284,605.73 = 383,139.18/x
  3. Step 3: Cross multiply
    856,053.90x = 1,284,605.73 × 383,139.18
  4. Step 4: Simplify right side
    856,053.90x = 492,182,786,015.50
  5. Step 5: Solve for x
    x = 492,182,786,015.50/856,053.90
  6. Step 6: Final answer
    x = 574,943.69

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Double scale
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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.