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Finding the Fourth Proportional to 780,071.48, 1,094,462.03 and 780,071.48

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Solution

The fourth proportional to 780,071.48, 1,094,462.03 and 780,071.48 is: 1,094,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,071.48 : 1,094,462.03 = 780,071.48 : x
  2. Step 2: Convert to fraction form
    780,071.48/1,094,462.03 = 780,071.48/x
  3. Step 3: Cross multiply
    780,071.48x = 1,094,462.03 × 780,071.48
  4. Step 4: Simplify right side
    780,071.48x = 853,758,606,173.24
  5. Step 5: Solve for x
    x = 853,758,606,173.24/780,071.48
  6. Step 6: Final answer
    x = 1,094,462.03

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.