Home / 786,549.18-1,085,445.46-447,019.86

Finding the Fourth Proportional to 786,549.18, 1,085,445.46 and 447,019.86

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Solution

The fourth proportional to 786,549.18, 1,085,445.46 and 447,019.86 is: 616,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,549.18 : 1,085,445.46 = 447,019.86 : x
  2. Step 2: Convert to fraction form
    786,549.18/1,085,445.46 = 447,019.86/x
  3. Step 3: Cross multiply
    786,549.18x = 1,085,445.46 × 447,019.86
  4. Step 4: Simplify right side
    786,549.18x = 485,215,677,566.84
  5. Step 5: Solve for x
    x = 485,215,677,566.84/786,549.18
  6. Step 6: Final answer
    x = 616,891.72

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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.