Home / 653,615,998.80-980,423,998.20-603,731,403.60

Finding the Fourth Proportional to 653,615,998.80, 980,423,998.20 and 603,731,403.60

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Solution

The fourth proportional to 653,615,998.80, 980,423,998.20 and 603,731,403.60 is: 905,597,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,615,998.80 : 980,423,998.20 = 603,731,403.60 : x
  2. Step 2: Convert to fraction form
    653,615,998.80/980,423,998.20 = 603,731,403.60/x
  3. Step 3: Cross multiply
    653,615,998.80x = 980,423,998.20 × 603,731,403.60
  4. Step 4: Simplify right side
    653,615,998.80x = 591,912,756,556,409,984
  5. Step 5: Solve for x
    x = 591,912,756,556,409,984/653,615,998.80
  6. Step 6: Final answer
    x = 905,597,105.40

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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.