Home / 705,738.07-973,919.60-383,448.05

Finding the Fourth Proportional to 705,738.07, 973,919.60 and 383,448.05

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Solution

The fourth proportional to 705,738.07, 973,919.60 and 383,448.05 is: 529,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,738.07 : 973,919.60 = 383,448.05 : x
  2. Step 2: Convert to fraction form
    705,738.07/973,919.60 = 383,448.05/x
  3. Step 3: Cross multiply
    705,738.07x = 973,919.60 × 383,448.05
  4. Step 4: Simplify right side
    705,738.07x = 373,447,571,476.78
  5. Step 5: Solve for x
    x = 373,447,571,476.78/705,738.07
  6. Step 6: Final answer
    x = 529,158.89

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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.