Home / 525,904.40-788,338.20-259,446.80

Finding the Fourth Proportional to 525,904.40, 788,338.20 and 259,446.80

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Solution

The fourth proportional to 525,904.40, 788,338.20 and 259,446.80 is: 388,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,904.40 : 788,338.20 = 259,446.80 : x
  2. Step 2: Convert to fraction form
    525,904.40/788,338.20 = 259,446.80/x
  3. Step 3: Cross multiply
    525,904.40x = 788,338.20 × 259,446.80
  4. Step 4: Simplify right side
    525,904.40x = 204,531,823,307.76
  5. Step 5: Solve for x
    x = 204,531,823,307.76/525,904.40
  6. Step 6: Final answer
    x = 388,914.46

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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.