Home / 689,296.58-951,088.44-402,761.30

Finding the Fourth Proportional to 689,296.58, 951,088.44 and 402,761.30

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Solution

The fourth proportional to 689,296.58, 951,088.44 and 402,761.30 is: 555,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,296.58 : 951,088.44 = 402,761.30 : x
  2. Step 2: Convert to fraction form
    689,296.58/951,088.44 = 402,761.30/x
  3. Step 3: Cross multiply
    689,296.58x = 951,088.44 × 402,761.30
  4. Step 4: Simplify right side
    689,296.58x = 383,061,616,509.37
  5. Step 5: Solve for x
    x = 383,061,616,509.37/689,296.58
  6. Step 6: Final answer
    x = 555,728.30

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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.