Home / 778,556.34-1,074,603.51-439,221.42

Finding the Fourth Proportional to 778,556.34, 1,074,603.51 and 439,221.42

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Solution

The fourth proportional to 778,556.34, 1,074,603.51 and 439,221.42 is: 606,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,556.34 : 1,074,603.51 = 439,221.42 : x
  2. Step 2: Convert to fraction form
    778,556.34/1,074,603.51 = 439,221.42/x
  3. Step 3: Cross multiply
    778,556.34x = 1,074,603.51 × 439,221.42
  4. Step 4: Simplify right side
    778,556.34x = 471,988,879,599.18
  5. Step 5: Solve for x
    x = 471,988,879,599.18/778,556.34
  6. Step 6: Final answer
    x = 606,236.00

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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.