Home / 644,588.07-889,547.37-354,197.25

Finding the Fourth Proportional to 644,588.07, 889,547.37 and 354,197.25

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Solution

The fourth proportional to 644,588.07, 889,547.37 and 354,197.25 is: 488,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,588.07 : 889,547.37 = 354,197.25 : x
  2. Step 2: Convert to fraction form
    644,588.07/889,547.37 = 354,197.25/x
  3. Step 3: Cross multiply
    644,588.07x = 889,547.37 × 354,197.25
  4. Step 4: Simplify right side
    644,588.07x = 315,075,232,198.73
  5. Step 5: Solve for x
    x = 315,075,232,198.73/644,588.07
  6. Step 6: Final answer
    x = 488,800.91

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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.