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Finding the Fourth Proportional to 604,411.20, 906,616.80 and 446,947.20

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Solution

The fourth proportional to 604,411.20, 906,616.80 and 446,947.20 is: 670,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,411.20 : 906,616.80 = 446,947.20 : x
  2. Step 2: Convert to fraction form
    604,411.20/906,616.80 = 446,947.20/x
  3. Step 3: Cross multiply
    604,411.20x = 906,616.80 × 446,947.20
  4. Step 4: Simplify right side
    604,411.20x = 405,209,840,232.96
  5. Step 5: Solve for x
    x = 405,209,840,232.96/604,411.20
  6. Step 6: Final answer
    x = 670,420.80

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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.