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Finding the Fourth Proportional to 644,133.80, 966,200.70 and 607,392.20

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Solution

The fourth proportional to 644,133.80, 966,200.70 and 607,392.20 is: 911,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,133.80 : 966,200.70 = 607,392.20 : x
  2. Step 2: Convert to fraction form
    644,133.80/966,200.70 = 607,392.20/x
  3. Step 3: Cross multiply
    644,133.80x = 966,200.70 × 607,392.20
  4. Step 4: Simplify right side
    644,133.80x = 586,862,768,814.54
  5. Step 5: Solve for x
    x = 586,862,768,814.54/644,133.80
  6. Step 6: Final answer
    x = 911,088.30

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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.