Home / 712,159,893.18-980,496,542.79-555,325,749.18

Finding the Fourth Proportional to 712,159,893.18, 980,496,542.79 and 555,325,749.18

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Solution

The fourth proportional to 712,159,893.18, 980,496,542.79 and 555,325,749.18 is: 764,568,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,159,893.18 : 980,496,542.79 = 555,325,749.18 : x
  2. Step 2: Convert to fraction form
    712,159,893.18/980,496,542.79 = 555,325,749.18/x
  3. Step 3: Cross multiply
    712,159,893.18x = 980,496,542.79 × 555,325,749.18
  4. Step 4: Simplify right side
    712,159,893.18x = 544,494,977,193,256,576
  5. Step 5: Solve for x
    x = 544,494,977,193,256,576/712,159,893.18
  6. Step 6: Final answer
    x = 764,568,438.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.