Home / 656,078.96-905,392.20-369,603.56

Finding the Fourth Proportional to 656,078.96, 905,392.20 and 369,603.56

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Solution

The fourth proportional to 656,078.96, 905,392.20 and 369,603.56 is: 510,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,078.96 : 905,392.20 = 369,603.56 : x
  2. Step 2: Convert to fraction form
    656,078.96/905,392.20 = 369,603.56/x
  3. Step 3: Cross multiply
    656,078.96x = 905,392.20 × 369,603.56
  4. Step 4: Simplify right side
    656,078.96x = 334,636,180,316.23
  5. Step 5: Solve for x
    x = 334,636,180,316.23/656,078.96
  6. Step 6: Final answer
    x = 510,054.74

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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.