Home / 666,786.04-1,000,001.40-186,987.40

Finding the Fourth Proportional to 666,786.04, 1,000,001.40 and 186,987.40

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Solution

The fourth proportional to 666,786.04, 1,000,001.40 and 186,987.40 is: 280,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,786.04 : 1,000,001.40 = 186,987.40 : x
  2. Step 2: Convert to fraction form
    666,786.04/1,000,001.40 = 186,987.40/x
  3. Step 3: Cross multiply
    666,786.04x = 1,000,001.40 × 186,987.40
  4. Step 4: Simplify right side
    666,786.04x = 186,987,661,782.36
  5. Step 5: Solve for x
    x = 186,987,661,782.36/666,786.04
  6. Step 6: Final answer
    x = 280,431.28

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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.