Home / 689,896.51-952,088.50-383,992.45

Finding the Fourth Proportional to 689,896.51, 952,088.50 and 383,992.45

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Solution

The fourth proportional to 689,896.51, 952,088.50 and 383,992.45 is: 529,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,896.51 : 952,088.50 = 383,992.45 : x
  2. Step 2: Convert to fraction form
    689,896.51/952,088.50 = 383,992.45/x
  3. Step 3: Cross multiply
    689,896.51x = 952,088.50 × 383,992.45
  4. Step 4: Simplify right side
    689,896.51x = 365,594,795,731.83
  5. Step 5: Solve for x
    x = 365,594,795,731.83/689,896.51
  6. Step 6: Final answer
    x = 529,927.01

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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.