Home / 694,844.35-958,875.80-388,920.65

Finding the Fourth Proportional to 694,844.35, 958,875.80 and 388,920.65

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Solution

The fourth proportional to 694,844.35, 958,875.80 and 388,920.65 is: 536,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,844.35 : 958,875.80 = 388,920.65 : x
  2. Step 2: Convert to fraction form
    694,844.35/958,875.80 = 388,920.65/x
  3. Step 3: Cross multiply
    694,844.35x = 958,875.80 × 388,920.65
  4. Step 4: Simplify right side
    694,844.35x = 372,926,592,666.29
  5. Step 5: Solve for x
    x = 372,926,592,666.29/694,844.35
  6. Step 6: Final answer
    x = 536,705.23

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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.