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Finding the Fourth Proportional to 434,578.70, 608,824.90 and 434,578.70

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Solution

The fourth proportional to 434,578.70, 608,824.90 and 434,578.70 is: 608,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,578.70 : 608,824.90 = 434,578.70 : x
  2. Step 2: Convert to fraction form
    434,578.70/608,824.90 = 434,578.70/x
  3. Step 3: Cross multiply
    434,578.70x = 608,824.90 × 434,578.70
  4. Step 4: Simplify right side
    434,578.70x = 264,582,333,569.63
  5. Step 5: Solve for x
    x = 264,582,333,569.63/434,578.70
  6. Step 6: Final answer
    x = 608,824.90

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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.