Home / 705,809.58-974,015.10-383,520.66

Finding the Fourth Proportional to 705,809.58, 974,015.10 and 383,520.66

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Solution

The fourth proportional to 705,809.58, 974,015.10 and 383,520.66 is: 529,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,809.58 : 974,015.10 = 383,520.66 : x
  2. Step 2: Convert to fraction form
    705,809.58/974,015.10 = 383,520.66/x
  3. Step 3: Cross multiply
    705,809.58x = 974,015.10 × 383,520.66
  4. Step 4: Simplify right side
    705,809.58x = 373,554,914,001.97
  5. Step 5: Solve for x
    x = 373,554,914,001.97/705,809.58
  6. Step 6: Final answer
    x = 529,257.36

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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.