Home / 1,100,681.83-1,651,186.80-390,650.41

Finding the Fourth Proportional to 1,100,681.83, 1,651,186.80 and 390,650.41

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Solution

The fourth proportional to 1,100,681.83, 1,651,186.80 and 390,650.41 is: 586,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,681.83 : 1,651,186.80 = 390,650.41 : x
  2. Step 2: Convert to fraction form
    1,100,681.83/1,651,186.80 = 390,650.41/x
  3. Step 3: Cross multiply
    1,100,681.83x = 1,651,186.80 × 390,650.41
  4. Step 4: Simplify right side
    1,100,681.83x = 645,036,801,005.63
  5. Step 5: Solve for x
    x = 645,036,801,005.63/1,100,681.83
  6. Step 6: Final answer
    x = 586,033.84

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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.