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Finding the Fourth Proportional to 524,448,220.40, 786,672,330.60 and 320,374,876.40

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Solution

The fourth proportional to 524,448,220.40, 786,672,330.60 and 320,374,876.40 is: 480,562,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,448,220.40 : 786,672,330.60 = 320,374,876.40 : x
  2. Step 2: Convert to fraction form
    524,448,220.40/786,672,330.60 = 320,374,876.40/x
  3. Step 3: Cross multiply
    524,448,220.40x = 786,672,330.60 × 320,374,876.40
  4. Step 4: Simplify right side
    524,448,220.40x = 252,030,050,683,274,912
  5. Step 5: Solve for x
    x = 252,030,050,683,274,912/524,448,220.40
  6. Step 6: Final answer
    x = 480,562,314.60

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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.