Home / 619,488,026.20-929,232,039.30-434,058,419.80

Finding the Fourth Proportional to 619,488,026.20, 929,232,039.30 and 434,058,419.80

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Solution

The fourth proportional to 619,488,026.20, 929,232,039.30 and 434,058,419.80 is: 651,087,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,488,026.20 : 929,232,039.30 = 434,058,419.80 : x
  2. Step 2: Convert to fraction form
    619,488,026.20/929,232,039.30 = 434,058,419.80/x
  3. Step 3: Cross multiply
    619,488,026.20x = 929,232,039.30 × 434,058,419.80
  4. Step 4: Simplify right side
    619,488,026.20x = 403,340,990,606,089,472
  5. Step 5: Solve for x
    x = 403,340,990,606,089,472/619,488,026.20
  6. Step 6: Final answer
    x = 651,087,629.70

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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.