Home / 644,852.16-889,619.94-402,714.36

Finding the Fourth Proportional to 644,852.16, 889,619.94 and 402,714.36

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Solution

The fourth proportional to 644,852.16, 889,619.94 and 402,714.36 is: 555,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,852.16 : 889,619.94 = 402,714.36 : x
  2. Step 2: Convert to fraction form
    644,852.16/889,619.94 = 402,714.36/x
  3. Step 3: Cross multiply
    644,852.16x = 889,619.94 × 402,714.36
  4. Step 4: Simplify right side
    644,852.16x = 358,262,724,780.34
  5. Step 5: Solve for x
    x = 358,262,724,780.34/644,852.16
  6. Step 6: Final answer
    x = 555,573.43

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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.