Home / 643,799.19-965,871.01-223,075.07

Finding the Fourth Proportional to 643,799.19, 965,871.01 and 223,075.07

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Solution

The fourth proportional to 643,799.19, 965,871.01 and 223,075.07 is: 334,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,799.19 : 965,871.01 = 223,075.07 : x
  2. Step 2: Convert to fraction form
    643,799.19/965,871.01 = 223,075.07/x
  3. Step 3: Cross multiply
    643,799.19x = 965,871.01 × 223,075.07
  4. Step 4: Simplify right side
    643,799.19x = 215,461,738,337.37
  5. Step 5: Solve for x
    x = 215,461,738,337.37/643,799.19
  6. Step 6: Final answer
    x = 334,672.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.