Home / 689,983.29-952,155.75-384,051.81

Finding the Fourth Proportional to 689,983.29, 952,155.75 and 384,051.81

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Solution

The fourth proportional to 689,983.29, 952,155.75 and 384,051.81 is: 529,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,983.29 : 952,155.75 = 384,051.81 : x
  2. Step 2: Convert to fraction form
    689,983.29/952,155.75 = 384,051.81/x
  3. Step 3: Cross multiply
    689,983.29x = 952,155.75 × 384,051.81
  4. Step 4: Simplify right side
    689,983.29x = 365,677,137,390.04
  5. Step 5: Solve for x
    x = 365,677,137,390.04/689,983.29
  6. Step 6: Final answer
    x = 529,979.70

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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.