Home / 643,925.40-966,017.70-223,114.20

Finding the Fourth Proportional to 643,925.40, 966,017.70 and 223,114.20

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Solution

The fourth proportional to 643,925.40, 966,017.70 and 223,114.20 is: 334,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,925.40 : 966,017.70 = 223,114.20 : x
  2. Step 2: Convert to fraction form
    643,925.40/966,017.70 = 223,114.20/x
  3. Step 3: Cross multiply
    643,925.40x = 966,017.70 × 223,114.20
  4. Step 4: Simplify right side
    643,925.40x = 215,532,266,321.34
  5. Step 5: Solve for x
    x = 215,532,266,321.34/643,925.40
  6. Step 6: Final answer
    x = 334,716.21

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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.