Home / 456,415.59-683,811.47-389,173.55

Finding the Fourth Proportional to 456,415.59, 683,811.47 and 389,173.55

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Solution

The fourth proportional to 456,415.59, 683,811.47 and 389,173.55 is: 583,068.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,415.59 : 683,811.47 = 389,173.55 : x
  2. Step 2: Convert to fraction form
    456,415.59/683,811.47 = 389,173.55/x
  3. Step 3: Cross multiply
    456,415.59x = 683,811.47 × 389,173.55
  4. Step 4: Simplify right side
    456,415.59x = 266,121,332,675.39
  5. Step 5: Solve for x
    x = 266,121,332,675.39/456,415.59
  6. Step 6: Final answer
    x = 583,068.01

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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.