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Finding the Fourth Proportional to 939,576,005.10, 1,409,364,007.65 and 939,576,005.10

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Solution

The fourth proportional to 939,576,005.10, 1,409,364,007.65 and 939,576,005.10 is: 1,409,364,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,576,005.10 : 1,409,364,007.65 = 939,576,005.10 : x
  2. Step 2: Convert to fraction form
    939,576,005.10/1,409,364,007.65 = 939,576,005.10/x
  3. Step 3: Cross multiply
    939,576,005.10x = 1,409,364,007.65 × 939,576,005.10
  4. Step 4: Simplify right side
    939,576,005.10x = 1,324,204,604,039,513,088
  5. Step 5: Solve for x
    x = 1,324,204,604,039,513,088/939,576,005.10
  6. Step 6: Final answer
    x = 1,409,364,007.65

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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.