Home / 705,804.21-973,992.70-395,686.25

Finding the Fourth Proportional to 705,804.21, 973,992.70 and 395,686.25

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Solution

The fourth proportional to 705,804.21, 973,992.70 and 395,686.25 is: 546,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,804.21 : 973,992.70 = 395,686.25 : x
  2. Step 2: Convert to fraction form
    705,804.21/973,992.70 = 395,686.25/x
  3. Step 3: Cross multiply
    705,804.21x = 973,992.70 × 395,686.25
  4. Step 4: Simplify right side
    705,804.21x = 385,395,518,990.38
  5. Step 5: Solve for x
    x = 385,395,518,990.38/705,804.21
  6. Step 6: Final answer
    x = 546,037.43

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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.