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Finding the Fourth Proportional to 432,800.70, 648,423.45 and 370,592.70

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Solution

The fourth proportional to 432,800.70, 648,423.45 and 370,592.70 is: 555,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,800.70 : 648,423.45 = 370,592.70 : x
  2. Step 2: Convert to fraction form
    432,800.70/648,423.45 = 370,592.70/x
  3. Step 3: Cross multiply
    432,800.70x = 648,423.45 × 370,592.70
  4. Step 4: Simplify right side
    432,800.70x = 240,300,997,078.82
  5. Step 5: Solve for x
    x = 240,300,997,078.82/432,800.70
  6. Step 6: Final answer
    x = 555,223.22

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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.