Home / 403,905.71-557,387.09-222,617.74

Finding the Fourth Proportional to 403,905.71, 557,387.09 and 222,617.74

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Solution

The fourth proportional to 403,905.71, 557,387.09 and 222,617.74 is: 307,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,905.71 : 557,387.09 = 222,617.74 : x
  2. Step 2: Convert to fraction form
    403,905.71/557,387.09 = 222,617.74/x
  3. Step 3: Cross multiply
    403,905.71x = 557,387.09 × 222,617.74
  4. Step 4: Simplify right side
    403,905.71x = 124,084,254,280.98
  5. Step 5: Solve for x
    x = 124,084,254,280.98/403,905.71
  6. Step 6: Final answer
    x = 307,210.94

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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.