Home / 432,923.80-649,385.70-291,206.20

Finding the Fourth Proportional to 432,923.80, 649,385.70 and 291,206.20

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Solution

The fourth proportional to 432,923.80, 649,385.70 and 291,206.20 is: 436,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,923.80 : 649,385.70 = 291,206.20 : x
  2. Step 2: Convert to fraction form
    432,923.80/649,385.70 = 291,206.20/x
  3. Step 3: Cross multiply
    432,923.80x = 649,385.70 × 291,206.20
  4. Step 4: Simplify right side
    432,923.80x = 189,105,142,031.34
  5. Step 5: Solve for x
    x = 189,105,142,031.34/432,923.80
  6. Step 6: Final answer
    x = 436,809.30

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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.