Home / 1,238,802.80-1,858,204.20-440,985.20

Finding the Fourth Proportional to 1,238,802.80, 1,858,204.20 and 440,985.20

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Solution

The fourth proportional to 1,238,802.80, 1,858,204.20 and 440,985.20 is: 661,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,802.80 : 1,858,204.20 = 440,985.20 : x
  2. Step 2: Convert to fraction form
    1,238,802.80/1,858,204.20 = 440,985.20/x
  3. Step 3: Cross multiply
    1,238,802.80x = 1,858,204.20 × 440,985.20
  4. Step 4: Simplify right side
    1,238,802.80x = 819,440,550,777.84
  5. Step 5: Solve for x
    x = 819,440,550,777.84/1,238,802.80
  6. Step 6: Final answer
    x = 661,477.80

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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.