Home / 353,406.64-487,540.56-210,085.24

Finding the Fourth Proportional to 353,406.64, 487,540.56 and 210,085.24

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Solution

The fourth proportional to 353,406.64, 487,540.56 and 210,085.24 is: 289,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,406.64 : 487,540.56 = 210,085.24 : x
  2. Step 2: Convert to fraction form
    353,406.64/487,540.56 = 210,085.24/x
  3. Step 3: Cross multiply
    353,406.64x = 487,540.56 × 210,085.24
  4. Step 4: Simplify right side
    353,406.64x = 102,425,075,557.33
  5. Step 5: Solve for x
    x = 102,425,075,557.33/353,406.64
  6. Step 6: Final answer
    x = 289,822.16

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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.