Home / 739,639.18-1,109,609.50-334,636.86

Finding the Fourth Proportional to 739,639.18, 1,109,609.50 and 334,636.86

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Solution

The fourth proportional to 739,639.18, 1,109,609.50 and 334,636.86 is: 502,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,639.18 : 1,109,609.50 = 334,636.86 : x
  2. Step 2: Convert to fraction form
    739,639.18/1,109,609.50 = 334,636.86/x
  3. Step 3: Cross multiply
    739,639.18x = 1,109,609.50 × 334,636.86
  4. Step 4: Simplify right side
    739,639.18x = 371,316,238,906.17
  5. Step 5: Solve for x
    x = 371,316,238,906.17/739,639.18
  6. Step 6: Final answer
    x = 502,023.49

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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.