Home / 641,416.16-885,141.06-354,936.08

Finding the Fourth Proportional to 641,416.16, 885,141.06 and 354,936.08

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Solution

The fourth proportional to 641,416.16, 885,141.06 and 354,936.08 is: 489,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,416.16 : 885,141.06 = 354,936.08 : x
  2. Step 2: Convert to fraction form
    641,416.16/885,141.06 = 354,936.08/x
  3. Step 3: Cross multiply
    641,416.16x = 885,141.06 × 354,936.08
  4. Step 4: Simplify right side
    641,416.16x = 314,168,498,083.45
  5. Step 5: Solve for x
    x = 314,168,498,083.45/641,416.16
  6. Step 6: Final answer
    x = 489,804.46

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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.