Home / 411,446,984.85-617,343,416.73-256,130,769.51

Finding the Fourth Proportional to 411,446,984.85, 617,343,416.73 and 256,130,769.51

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Solution

The fourth proportional to 411,446,984.85, 617,343,416.73 and 256,130,769.51 is: 384,303,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,446,984.85 : 617,343,416.73 = 256,130,769.51 : x
  2. Step 2: Convert to fraction form
    411,446,984.85/617,343,416.73 = 256,130,769.51/x
  3. Step 3: Cross multiply
    411,446,984.85x = 617,343,416.73 × 256,130,769.51
  4. Step 4: Simplify right side
    411,446,984.85x = 158,120,644,378,987,520
  5. Step 5: Solve for x
    x = 158,120,644,378,987,520/411,446,984.85
  6. Step 6: Final answer
    x = 384,303,811.19

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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.