Home / 859,705.80-1,186,404.72-472,563.48

Finding the Fourth Proportional to 859,705.80, 1,186,404.72 and 472,563.48

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Solution

The fourth proportional to 859,705.80, 1,186,404.72 and 472,563.48 is: 652,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,705.80 : 1,186,404.72 = 472,563.48 : x
  2. Step 2: Convert to fraction form
    859,705.80/1,186,404.72 = 472,563.48/x
  3. Step 3: Cross multiply
    859,705.80x = 1,186,404.72 × 472,563.48
  4. Step 4: Simplify right side
    859,705.80x = 560,651,543,171.63
  5. Step 5: Solve for x
    x = 560,651,543,171.63/859,705.80
  6. Step 6: Final answer
    x = 652,143.49

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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.