Home / 860,274.79-1,187,245.70-516,123.67

Finding the Fourth Proportional to 860,274.79, 1,187,245.70 and 516,123.67

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Solution

The fourth proportional to 860,274.79, 1,187,245.70 and 516,123.67 is: 712,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,274.79 : 1,187,245.70 = 516,123.67 : x
  2. Step 2: Convert to fraction form
    860,274.79/1,187,245.70 = 516,123.67/x
  3. Step 3: Cross multiply
    860,274.79x = 1,187,245.70 × 516,123.67
  4. Step 4: Simplify right side
    860,274.79x = 612,765,607,875.72
  5. Step 5: Solve for x
    x = 612,765,607,875.72/860,274.79
  6. Step 6: Final answer
    x = 712,290.56

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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.