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Finding the Fourth Proportional to 5,231,860.40, 7,307,808.40 and 5,231,860.40

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Solution

The fourth proportional to 5,231,860.40, 7,307,808.40 and 5,231,860.40 is: 7,307,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231,860.40 : 7,307,808.40 = 5,231,860.40 : x
  2. Step 2: Convert to fraction form
    5,231,860.40/7,307,808.40 = 5,231,860.40/x
  3. Step 3: Cross multiply
    5,231,860.40x = 7,307,808.40 × 5,231,860.40
  4. Step 4: Simplify right side
    5,231,860.40x = 38,233,433,378,747.37
  5. Step 5: Solve for x
    x = 38,233,433,378,747.37/5,231,860.40
  6. Step 6: Final answer
    x = 7,307,808.40

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1.5x scale

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.