Home / 771,171.87-1,064,065.95-484,525.89

Finding the Fourth Proportional to 771,171.87, 1,064,065.95 and 484,525.89

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Solution

The fourth proportional to 771,171.87, 1,064,065.95 and 484,525.89 is: 668,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,171.87 : 1,064,065.95 = 484,525.89 : x
  2. Step 2: Convert to fraction form
    771,171.87/1,064,065.95 = 484,525.89/x
  3. Step 3: Cross multiply
    771,171.87x = 1,064,065.95 × 484,525.89
  4. Step 4: Simplify right side
    771,171.87x = 515,567,501,442.45
  5. Step 5: Solve for x
    x = 515,567,501,442.45/771,171.87
  6. Step 6: Final answer
    x = 668,550.71

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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.