Home / 691,059.12-953,677.36-385,166.96

Finding the Fourth Proportional to 691,059.12, 953,677.36 and 385,166.96

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Solution

The fourth proportional to 691,059.12, 953,677.36 and 385,166.96 is: 531,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,059.12 : 953,677.36 = 385,166.96 : x
  2. Step 2: Convert to fraction form
    691,059.12/953,677.36 = 385,166.96/x
  3. Step 3: Cross multiply
    691,059.12x = 953,677.36 × 385,166.96
  4. Step 4: Simplify right side
    691,059.12x = 367,325,009,572.03
  5. Step 5: Solve for x
    x = 367,325,009,572.03/691,059.12
  6. Step 6: Final answer
    x = 531,539.20

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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.