Home / 778,973.22-1,075,032.81-439,317.54

Finding the Fourth Proportional to 778,973.22, 1,075,032.81 and 439,317.54

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Solution

The fourth proportional to 778,973.22, 1,075,032.81 and 439,317.54 is: 606,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,973.22 : 1,075,032.81 = 439,317.54 : x
  2. Step 2: Convert to fraction form
    778,973.22/1,075,032.81 = 439,317.54/x
  3. Step 3: Cross multiply
    778,973.22x = 1,075,032.81 × 439,317.54
  4. Step 4: Simplify right side
    778,973.22x = 472,280,769,508.49
  5. Step 5: Solve for x
    x = 472,280,769,508.49/778,973.22
  6. Step 6: Final answer
    x = 606,286.27

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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.