Home / 855,909.84-1,283,989.92-256,918.32

Finding the Fourth Proportional to 855,909.84, 1,283,989.92 and 256,918.32

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Solution

The fourth proportional to 855,909.84, 1,283,989.92 and 256,918.32 is: 385,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,909.84 : 1,283,989.92 = 256,918.32 : x
  2. Step 2: Convert to fraction form
    855,909.84/1,283,989.92 = 256,918.32/x
  3. Step 3: Cross multiply
    855,909.84x = 1,283,989.92 × 256,918.32
  4. Step 4: Simplify right side
    855,909.84x = 329,880,533,143.33
  5. Step 5: Solve for x
    x = 329,880,533,143.33/855,909.84
  6. Step 6: Final answer
    x = 385,415.05

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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.