Home / 354,780.36-489,587.46-193,637.40

Finding the Fourth Proportional to 354,780.36, 489,587.46 and 193,637.40

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Solution

The fourth proportional to 354,780.36, 489,587.46 and 193,637.40 is: 267,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,780.36 : 489,587.46 = 193,637.40 : x
  2. Step 2: Convert to fraction form
    354,780.36/489,587.46 = 193,637.40/x
  3. Step 3: Cross multiply
    354,780.36x = 489,587.46 × 193,637.40
  4. Step 4: Simplify right side
    354,780.36x = 94,802,442,827.00
  5. Step 5: Solve for x
    x = 94,802,442,827.00/354,780.36
  6. Step 6: Final answer
    x = 267,214.46

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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.