Home / 694,328.08-958,127.55-388,351.45

Finding the Fourth Proportional to 694,328.08, 958,127.55 and 388,351.45

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Solution

The fourth proportional to 694,328.08, 958,127.55 and 388,351.45 is: 535,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,328.08 : 958,127.55 = 388,351.45 : x
  2. Step 2: Convert to fraction form
    694,328.08/958,127.55 = 388,351.45/x
  3. Step 3: Cross multiply
    694,328.08x = 958,127.55 × 388,351.45
  4. Step 4: Simplify right side
    694,328.08x = 372,090,223,327.45
  5. Step 5: Solve for x
    x = 372,090,223,327.45/694,328.08
  6. Step 6: Final answer
    x = 535,899.72

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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.