Home / 689,785.93-951,897.70-383,857.07

Finding the Fourth Proportional to 689,785.93, 951,897.70 and 383,857.07

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Solution

The fourth proportional to 689,785.93, 951,897.70 and 383,857.07 is: 529,718.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,785.93 : 951,897.70 = 383,857.07 : x
  2. Step 2: Convert to fraction form
    689,785.93/951,897.70 = 383,857.07/x
  3. Step 3: Cross multiply
    689,785.93x = 951,897.70 × 383,857.07
  4. Step 4: Simplify right side
    689,785.93x = 365,392,662,061.74
  5. Step 5: Solve for x
    x = 365,392,662,061.74/689,785.93
  6. Step 6: Final answer
    x = 529,718.93

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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.