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Finding the Fourth Proportional to 603,908.40, 905,862.60 and 603,908.40

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Solution

The fourth proportional to 603,908.40, 905,862.60 and 603,908.40 is: 905,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,908.40 : 905,862.60 = 603,908.40 : x
  2. Step 2: Convert to fraction form
    603,908.40/905,862.60 = 603,908.40/x
  3. Step 3: Cross multiply
    603,908.40x = 905,862.60 × 603,908.40
  4. Step 4: Simplify right side
    603,908.40x = 547,058,033,385.84
  5. Step 5: Solve for x
    x = 547,058,033,385.84/603,908.40
  6. Step 6: Final answer
    x = 905,862.60

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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.