Home / 454,017.60-681,415.20-201,686.40

Finding the Fourth Proportional to 454,017.60, 681,415.20 and 201,686.40

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Solution

The fourth proportional to 454,017.60, 681,415.20 and 201,686.40 is: 302,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,017.60 : 681,415.20 = 201,686.40 : x
  2. Step 2: Convert to fraction form
    454,017.60/681,415.20 = 201,686.40/x
  3. Step 3: Cross multiply
    454,017.60x = 681,415.20 × 201,686.40
  4. Step 4: Simplify right side
    454,017.60x = 137,432,178,593.28
  5. Step 5: Solve for x
    x = 137,432,178,593.28/454,017.60
  6. Step 6: Final answer
    x = 302,702.32

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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.