Home / 386,433.40-579,650.10-105,950.20

Finding the Fourth Proportional to 386,433.40, 579,650.10 and 105,950.20

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Solution

The fourth proportional to 386,433.40, 579,650.10 and 105,950.20 is: 158,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,433.40 : 579,650.10 = 105,950.20 : x
  2. Step 2: Convert to fraction form
    386,433.40/579,650.10 = 105,950.20/x
  3. Step 3: Cross multiply
    386,433.40x = 579,650.10 × 105,950.20
  4. Step 4: Simplify right side
    386,433.40x = 61,414,044,025.02
  5. Step 5: Solve for x
    x = 61,414,044,025.02/386,433.40
  6. Step 6: Final answer
    x = 158,925.30

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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.