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Finding the Fourth Proportional to 1,346,318.16, 1,857,889.16 and 742,706

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Solution

The fourth proportional to 1,346,318.16, 1,857,889.16 and 742,706 is: 1,024,917.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,318.16 : 1,857,889.16 = 742,706 : x
  2. Step 2: Convert to fraction form
    1,346,318.16/1,857,889.16 = 742,706/x
  3. Step 3: Cross multiply
    1,346,318.16x = 1,857,889.16 × 742,706
  4. Step 4: Simplify right side
    1,346,318.16x = 1,379,865,426,466.96
  5. Step 5: Solve for x
    x = 1,379,865,426,466.96/1,346,318.16
  6. Step 6: Final answer
    x = 1,024,917.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.