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Finding the Fourth Proportional to 528,053.13, 791,729.73 and 191,049.93

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Solution

The fourth proportional to 528,053.13, 791,729.73 and 191,049.93 is: 286,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,053.13 : 791,729.73 = 191,049.93 : x
  2. Step 2: Convert to fraction form
    528,053.13/791,729.73 = 191,049.93/x
  3. Step 3: Cross multiply
    528,053.13x = 791,729.73 × 191,049.93
  4. Step 4: Simplify right side
    528,053.13x = 151,259,909,495.42
  5. Step 5: Solve for x
    x = 151,259,909,495.42/528,053.13
  6. Step 6: Final answer
    x = 286,448.28

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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.