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Finding the Fourth Proportional to 653,453.20, 915,767.60 and 653,453.20

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Solution

The fourth proportional to 653,453.20, 915,767.60 and 653,453.20 is: 915,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,453.20 : 915,767.60 = 653,453.20 : x
  2. Step 2: Convert to fraction form
    653,453.20/915,767.60 = 653,453.20/x
  3. Step 3: Cross multiply
    653,453.20x = 915,767.60 × 653,453.20
  4. Step 4: Simplify right side
    653,453.20x = 598,411,268,676.32
  5. Step 5: Solve for x
    x = 598,411,268,676.32/653,453.20
  6. Step 6: Final answer
    x = 915,767.60

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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.