Home / 689,360.44-951,303.73-383,430.23

Finding the Fourth Proportional to 689,360.44, 951,303.73 and 383,430.23

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Solution

The fourth proportional to 689,360.44, 951,303.73 and 383,430.23 is: 529,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,360.44 : 951,303.73 = 383,430.23 : x
  2. Step 2: Convert to fraction form
    689,360.44/951,303.73 = 383,430.23/x
  3. Step 3: Cross multiply
    689,360.44x = 951,303.73 × 383,430.23
  4. Step 4: Simplify right side
    689,360.44x = 364,758,608,701.33
  5. Step 5: Solve for x
    x = 364,758,608,701.33/689,360.44
  6. Step 6: Final answer
    x = 529,126.11

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Double scale
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Similar ratio
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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.