Home / 656,087.20-905,396.16-369,699.52

Finding the Fourth Proportional to 656,087.20, 905,396.16 and 369,699.52

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Solution

The fourth proportional to 656,087.20, 905,396.16 and 369,699.52 is: 510,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,087.20 : 905,396.16 = 369,699.52 : x
  2. Step 2: Convert to fraction form
    656,087.20/905,396.16 = 369,699.52/x
  3. Step 3: Cross multiply
    656,087.20x = 905,396.16 × 369,699.52
  4. Step 4: Simplify right side
    656,087.20x = 334,724,525,761.84
  5. Step 5: Solve for x
    x = 334,724,525,761.84/656,087.20
  6. Step 6: Final answer
    x = 510,182.98

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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.