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Finding the Fourth Proportional to 926,864.90, 1,299,477.10 and 926,864.90

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Solution

The fourth proportional to 926,864.90, 1,299,477.10 and 926,864.90 is: 1,299,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,864.90 : 1,299,477.10 = 926,864.90 : x
  2. Step 2: Convert to fraction form
    926,864.90/1,299,477.10 = 926,864.90/x
  3. Step 3: Cross multiply
    926,864.90x = 1,299,477.10 × 926,864.90
  4. Step 4: Simplify right side
    926,864.90x = 1,204,439,712,343.79
  5. Step 5: Solve for x
    x = 1,204,439,712,343.79/926,864.90
  6. Step 6: Final answer
    x = 1,299,477.10

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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.