Home / 619,488,015.20-929,232,022.80-434,058,408.80

Finding the Fourth Proportional to 619,488,015.20, 929,232,022.80 and 434,058,408.80

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Solution

The fourth proportional to 619,488,015.20, 929,232,022.80 and 434,058,408.80 is: 651,087,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,488,015.20 : 929,232,022.80 = 434,058,408.80 : x
  2. Step 2: Convert to fraction form
    619,488,015.20/929,232,022.80 = 434,058,408.80/x
  3. Step 3: Cross multiply
    619,488,015.20x = 929,232,022.80 × 434,058,408.80
  4. Step 4: Simplify right side
    619,488,015.20x = 403,340,973,222,573,312
  5. Step 5: Solve for x
    x = 403,340,973,222,573,312/619,488,015.20
  6. Step 6: Final answer
    x = 651,087,613.20

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Double scale
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Similar ratio
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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.