Home / 784,513.20-1,176,186.60-429,927.60

Finding the Fourth Proportional to 784,513.20, 1,176,186.60 and 429,927.60

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Solution

The fourth proportional to 784,513.20, 1,176,186.60 and 429,927.60 is: 644,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,513.20 : 1,176,186.60 = 429,927.60 : x
  2. Step 2: Convert to fraction form
    784,513.20/1,176,186.60 = 429,927.60/x
  3. Step 3: Cross multiply
    784,513.20x = 1,176,186.60 × 429,927.60
  4. Step 4: Simplify right side
    784,513.20x = 505,675,082,090.16
  5. Step 5: Solve for x
    x = 505,675,082,090.16/784,513.20
  6. Step 6: Final answer
    x = 644,571.80

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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.