Home / 1,128,030.77-1,556,685.03-644,594.76

Finding the Fourth Proportional to 1,128,030.77, 1,556,685.03 and 644,594.76

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Solution

The fourth proportional to 1,128,030.77, 1,556,685.03 and 644,594.76 is: 889,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,030.77 : 1,556,685.03 = 644,594.76 : x
  2. Step 2: Convert to fraction form
    1,128,030.77/1,556,685.03 = 644,594.76/x
  3. Step 3: Cross multiply
    1,128,030.77x = 1,556,685.03 × 644,594.76
  4. Step 4: Simplify right side
    1,128,030.77x = 1,003,431,013,308.44
  5. Step 5: Solve for x
    x = 1,003,431,013,308.44/1,128,030.77
  6. Step 6: Final answer
    x = 889,542.24

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Double scale
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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.