Home / 528,128.70-791,994.16-191,086.02

Finding the Fourth Proportional to 528,128.70, 791,994.16 and 191,086.02

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Solution

The fourth proportional to 528,128.70, 791,994.16 and 191,086.02 is: 286,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,128.70 : 791,994.16 = 191,086.02 : x
  2. Step 2: Convert to fraction form
    528,128.70/791,994.16 = 191,086.02/x
  3. Step 3: Cross multiply
    528,128.70x = 791,994.16 × 191,086.02
  4. Step 4: Simplify right side
    528,128.70x = 151,339,011,897.64
  5. Step 5: Solve for x
    x = 151,339,011,897.64/528,128.70
  6. Step 6: Final answer
    x = 286,557.07

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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.