Home / 652,795.20-977,880.60-440,218.80

Finding the Fourth Proportional to 652,795.20, 977,880.60 and 440,218.80

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Solution

The fourth proportional to 652,795.20, 977,880.60 and 440,218.80 is: 659,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,795.20 : 977,880.60 = 440,218.80 : x
  2. Step 2: Convert to fraction form
    652,795.20/977,880.60 = 440,218.80/x
  3. Step 3: Cross multiply
    652,795.20x = 977,880.60 × 440,218.80
  4. Step 4: Simplify right side
    652,795.20x = 430,481,424,275.28
  5. Step 5: Solve for x
    x = 430,481,424,275.28/652,795.20
  6. Step 6: Final answer
    x = 659,443.31

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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.