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Finding the Fourth Proportional to 608,943.30, 853,920.30 and 608,943.30

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Solution

The fourth proportional to 608,943.30, 853,920.30 and 608,943.30 is: 853,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,943.30 : 853,920.30 = 608,943.30 : x
  2. Step 2: Convert to fraction form
    608,943.30/853,920.30 = 608,943.30/x
  3. Step 3: Cross multiply
    608,943.30x = 853,920.30 × 608,943.30
  4. Step 4: Simplify right side
    608,943.30x = 519,989,045,418.99
  5. Step 5: Solve for x
    x = 519,989,045,418.99/608,943.30
  6. Step 6: Final answer
    x = 853,920.30

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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.