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Finding the Fourth Proportional to 1,122,402.40, 1,683,603.60 and 1,122,402.40

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Solution

The fourth proportional to 1,122,402.40, 1,683,603.60 and 1,122,402.40 is: 1,683,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,402.40 : 1,683,603.60 = 1,122,402.40 : x
  2. Step 2: Convert to fraction form
    1,122,402.40/1,683,603.60 = 1,122,402.40/x
  3. Step 3: Cross multiply
    1,122,402.40x = 1,683,603.60 × 1,122,402.40
  4. Step 4: Simplify right side
    1,122,402.40x = 1,889,680,721,288.64
  5. Step 5: Solve for x
    x = 1,889,680,721,288.64/1,122,402.40
  6. Step 6: Final answer
    x = 1,683,603.60

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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.