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Finding the Fourth Proportional to 1,038,273.70, 1,553,911.35 and 1,038,273.70

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Solution

The fourth proportional to 1,038,273.70, 1,553,911.35 and 1,038,273.70 is: 1,553,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,273.70 : 1,553,911.35 = 1,038,273.70 : x
  2. Step 2: Convert to fraction form
    1,038,273.70/1,553,911.35 = 1,038,273.70/x
  3. Step 3: Cross multiply
    1,038,273.70x = 1,553,911.35 × 1,038,273.70
  4. Step 4: Simplify right side
    1,038,273.70x = 1,613,385,286,836.50
  5. Step 5: Solve for x
    x = 1,613,385,286,836.50/1,038,273.70
  6. Step 6: Final answer
    x = 1,553,911.35

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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.