Home / 643,923.40-966,806.70-363,987.40

Finding the Fourth Proportional to 643,923.40, 966,806.70 and 363,987.40

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Solution

The fourth proportional to 643,923.40, 966,806.70 and 363,987.40 is: 546,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,923.40 : 966,806.70 = 363,987.40 : x
  2. Step 2: Convert to fraction form
    643,923.40/966,806.70 = 363,987.40/x
  3. Step 3: Cross multiply
    643,923.40x = 966,806.70 × 363,987.40
  4. Step 4: Simplify right side
    643,923.40x = 351,905,457,035.58
  5. Step 5: Solve for x
    x = 351,905,457,035.58/643,923.40
  6. Step 6: Final answer
    x = 546,502.05

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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.