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Finding the Fourth Proportional to 619,277.40, 865,938.60 and 619,277.40

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Solution

The fourth proportional to 619,277.40, 865,938.60 and 619,277.40 is: 865,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,277.40 : 865,938.60 = 619,277.40 : x
  2. Step 2: Convert to fraction form
    619,277.40/865,938.60 = 619,277.40/x
  3. Step 3: Cross multiply
    619,277.40x = 865,938.60 × 619,277.40
  4. Step 4: Simplify right side
    619,277.40x = 536,256,204,767.64
  5. Step 5: Solve for x
    x = 536,256,204,767.64/619,277.40
  6. Step 6: Final answer
    x = 865,938.60

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1.5x scale

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.