Home / 1,128,033.90-1,556,676.09-618,738.30

Finding the Fourth Proportional to 1,128,033.90, 1,556,676.09 and 618,738.30

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Solution

The fourth proportional to 1,128,033.90, 1,556,676.09 and 618,738.30 is: 853,852.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,033.90 : 1,556,676.09 = 618,738.30 : x
  2. Step 2: Convert to fraction form
    1,128,033.90/1,556,676.09 = 618,738.30/x
  3. Step 3: Cross multiply
    1,128,033.90x = 1,556,676.09 × 618,738.30
  4. Step 4: Simplify right side
    1,128,033.90x = 963,175,117,577.25
  5. Step 5: Solve for x
    x = 963,175,117,577.25/1,128,033.90
  6. Step 6: Final answer
    x = 853,852.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.