Home / 399,231.63-549,541.20-348,154.23

Finding the Fourth Proportional to 399,231.63, 549,541.20 and 348,154.23

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Solution

The fourth proportional to 399,231.63, 549,541.20 and 348,154.23 is: 479,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,231.63 : 549,541.20 = 348,154.23 : x
  2. Step 2: Convert to fraction form
    399,231.63/549,541.20 = 348,154.23/x
  3. Step 3: Cross multiply
    399,231.63x = 549,541.20 × 348,154.23
  4. Step 4: Simplify right side
    399,231.63x = 191,325,093,339.28
  5. Step 5: Solve for x
    x = 191,325,093,339.28/399,231.63
  6. Step 6: Final answer
    x = 479,233.30

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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.