Home / 705,609.16-973,747.38-383,321.68

Finding the Fourth Proportional to 705,609.16, 973,747.38 and 383,321.68

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Solution

The fourth proportional to 705,609.16, 973,747.38 and 383,321.68 is: 528,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,609.16 : 973,747.38 = 383,321.68 : x
  2. Step 2: Convert to fraction form
    705,609.16/973,747.38 = 383,321.68/x
  3. Step 3: Cross multiply
    705,609.16x = 973,747.38 × 383,321.68
  4. Step 4: Simplify right side
    705,609.16x = 373,258,481,597.20
  5. Step 5: Solve for x
    x = 373,258,481,597.20/705,609.16
  6. Step 6: Final answer
    x = 528,987.58

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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.