Home / 525,949.60-789,442.80-260,010.40

Finding the Fourth Proportional to 525,949.60, 789,442.80 and 260,010.40

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Solution

The fourth proportional to 525,949.60, 789,442.80 and 260,010.40 is: 390,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,949.60 : 789,442.80 = 260,010.40 : x
  2. Step 2: Convert to fraction form
    525,949.60/789,442.80 = 260,010.40/x
  3. Step 3: Cross multiply
    525,949.60x = 789,442.80 × 260,010.40
  4. Step 4: Simplify right side
    525,949.60x = 205,263,338,205.12
  5. Step 5: Solve for x
    x = 205,263,338,205.12/525,949.60
  6. Step 6: Final answer
    x = 390,271.88

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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.