Home / 712,220,670.01-982,919,050.58-448,129,036.67

Finding the Fourth Proportional to 712,220,670.01, 982,919,050.58 and 448,129,036.67

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Solution

The fourth proportional to 712,220,670.01, 982,919,050.58 and 448,129,036.67 is: 618,452,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,220,670.01 : 982,919,050.58 = 448,129,036.67 : x
  2. Step 2: Convert to fraction form
    712,220,670.01/982,919,050.58 = 448,129,036.67/x
  3. Step 3: Cross multiply
    712,220,670.01x = 982,919,050.58 × 448,129,036.67
  4. Step 4: Simplify right side
    712,220,670.01x = 440,474,567,258,765,824
  5. Step 5: Solve for x
    x = 440,474,567,258,765,824/712,220,670.01
  6. Step 6: Final answer
    x = 618,452,378.33

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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.