Home / 705,380.85-973,580.58-463,685.76

Finding the Fourth Proportional to 705,380.85, 973,580.58 and 463,685.76

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Solution

The fourth proportional to 705,380.85, 973,580.58 and 463,685.76 is: 639,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,380.85 : 973,580.58 = 463,685.76 : x
  2. Step 2: Convert to fraction form
    705,380.85/973,580.58 = 463,685.76/x
  3. Step 3: Cross multiply
    705,380.85x = 973,580.58 × 463,685.76
  4. Step 4: Simplify right side
    705,380.85x = 451,435,451,158.54
  5. Step 5: Solve for x
    x = 451,435,451,158.54/705,380.85
  6. Step 6: Final answer
    x = 639,988.24

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Double scale
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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.