Home / 1,128,003.40-1,556,634-618,707.80

Finding the Fourth Proportional to 1,128,003.40, 1,556,634 and 618,707.80

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Solution

The fourth proportional to 1,128,003.40, 1,556,634 and 618,707.80 is: 853,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,003.40 : 1,556,634 = 618,707.80 : x
  2. Step 2: Convert to fraction form
    1,128,003.40/1,556,634 = 618,707.80/x
  3. Step 3: Cross multiply
    1,128,003.40x = 1,556,634 × 618,707.80
  4. Step 4: Simplify right side
    1,128,003.40x = 963,101,597,545.20
  5. Step 5: Solve for x
    x = 963,101,597,545.20/1,128,003.40
  6. Step 6: Final answer
    x = 853,810.90

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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.