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Finding the Fourth Proportional to 433,072.20, 648,830.70 and 370,864.20

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Solution

The fourth proportional to 433,072.20, 648,830.70 and 370,864.20 is: 555,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,072.20 : 648,830.70 = 370,864.20 : x
  2. Step 2: Convert to fraction form
    433,072.20/648,830.70 = 370,864.20/x
  3. Step 3: Cross multiply
    433,072.20x = 648,830.70 × 370,864.20
  4. Step 4: Simplify right side
    433,072.20x = 240,628,078,490.94
  5. Step 5: Solve for x
    x = 240,628,078,490.94/433,072.20
  6. Step 6: Final answer
    x = 555,630.40

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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.