Home / 639,023.10-958,733.54-189,746.31

Finding the Fourth Proportional to 639,023.10, 958,733.54 and 189,746.31

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Solution

The fourth proportional to 639,023.10, 958,733.54 and 189,746.31 is: 284,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,023.10 : 958,733.54 = 189,746.31 : x
  2. Step 2: Convert to fraction form
    639,023.10/958,733.54 = 189,746.31/x
  3. Step 3: Cross multiply
    639,023.10x = 958,733.54 × 189,746.31
  4. Step 4: Simplify right side
    639,023.10x = 181,916,150,539.51
  5. Step 5: Solve for x
    x = 181,916,150,539.51/639,023.10
  6. Step 6: Final answer
    x = 284,678.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.