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Finding the Fourth Proportional to 437,072.40, 654,442.20 and 437,072.40

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Solution

The fourth proportional to 437,072.40, 654,442.20 and 437,072.40 is: 654,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,072.40 : 654,442.20 = 437,072.40 : x
  2. Step 2: Convert to fraction form
    437,072.40/654,442.20 = 437,072.40/x
  3. Step 3: Cross multiply
    437,072.40x = 654,442.20 × 437,072.40
  4. Step 4: Simplify right side
    437,072.40x = 286,038,623,015.28
  5. Step 5: Solve for x
    x = 286,038,623,015.28/437,072.40
  6. Step 6: Final answer
    x = 654,442.20

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1.5x scale

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.