Home / 525,948.40-788,404.20-259,490.80

Finding the Fourth Proportional to 525,948.40, 788,404.20 and 259,490.80

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Solution

The fourth proportional to 525,948.40, 788,404.20 and 259,490.80 is: 388,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,948.40 : 788,404.20 = 259,490.80 : x
  2. Step 2: Convert to fraction form
    525,948.40/788,404.20 = 259,490.80/x
  3. Step 3: Cross multiply
    525,948.40x = 788,404.20 × 259,490.80
  4. Step 4: Simplify right side
    525,948.40x = 204,583,636,581.36
  5. Step 5: Solve for x
    x = 204,583,636,581.36/525,948.40
  6. Step 6: Final answer
    x = 388,980.43

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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.