Home / 856,513.80-1,284,770.70-357,877.80

Finding the Fourth Proportional to 856,513.80, 1,284,770.70 and 357,877.80

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Solution

The fourth proportional to 856,513.80, 1,284,770.70 and 357,877.80 is: 536,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,513.80 : 1,284,770.70 = 357,877.80 : x
  2. Step 2: Convert to fraction form
    856,513.80/1,284,770.70 = 357,877.80/x
  3. Step 3: Cross multiply
    856,513.80x = 1,284,770.70 × 357,877.80
  4. Step 4: Simplify right side
    856,513.80x = 459,790,911,620.46
  5. Step 5: Solve for x
    x = 459,790,911,620.46/856,513.80
  6. Step 6: Final answer
    x = 536,816.70

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Similar ratio
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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.