Home / 517,245.20-714,246.90-381,514.40

Finding the Fourth Proportional to 517,245.20, 714,246.90 and 381,514.40

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Solution

The fourth proportional to 517,245.20, 714,246.90 and 381,514.40 is: 526,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,245.20 : 714,246.90 = 381,514.40 : x
  2. Step 2: Convert to fraction form
    517,245.20/714,246.90 = 381,514.40/x
  3. Step 3: Cross multiply
    517,245.20x = 714,246.90 × 381,514.40
  4. Step 4: Simplify right side
    517,245.20x = 272,495,477,505.36
  5. Step 5: Solve for x
    x = 272,495,477,505.36/517,245.20
  6. Step 6: Final answer
    x = 526,820.70

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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.