Home / 1,128,087.50-1,556,760.76-618,791.10

Finding the Fourth Proportional to 1,128,087.50, 1,556,760.76 and 618,791.10

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Solution

The fourth proportional to 1,128,087.50, 1,556,760.76 and 618,791.10 is: 853,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,087.50 : 1,556,760.76 = 618,791.10 : x
  2. Step 2: Convert to fraction form
    1,128,087.50/1,556,760.76 = 618,791.10/x
  3. Step 3: Cross multiply
    1,128,087.50x = 1,556,760.76 × 618,791.10
  4. Step 4: Simplify right side
    1,128,087.50x = 963,309,703,117.24
  5. Step 5: Solve for x
    x = 963,309,703,117.24/1,128,087.50
  6. Step 6: Final answer
    x = 853,931.72

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Double scale
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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.