Home / 644,298.32-889,152.02-386,090.16

Finding the Fourth Proportional to 644,298.32, 889,152.02 and 386,090.16

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Solution

The fourth proportional to 644,298.32, 889,152.02 and 386,090.16 is: 532,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,298.32 : 889,152.02 = 386,090.16 : x
  2. Step 2: Convert to fraction form
    644,298.32/889,152.02 = 386,090.16/x
  3. Step 3: Cross multiply
    644,298.32x = 889,152.02 × 386,090.16
  4. Step 4: Simplify right side
    644,298.32x = 343,292,845,666.12
  5. Step 5: Solve for x
    x = 343,292,845,666.12/644,298.32
  6. Step 6: Final answer
    x = 532,816.61

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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.