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Finding the Fourth Proportional to 363,852.90, 502,111.53 and 210,911.94

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Solution

The fourth proportional to 363,852.90, 502,111.53 and 210,911.94 is: 291,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,852.90 : 502,111.53 = 210,911.94 : x
  2. Step 2: Convert to fraction form
    363,852.90/502,111.53 = 210,911.94/x
  3. Step 3: Cross multiply
    363,852.90x = 502,111.53 × 210,911.94
  4. Step 4: Simplify right side
    363,852.90x = 105,901,316,888.67
  5. Step 5: Solve for x
    x = 105,901,316,888.67/363,852.90
  6. Step 6: Final answer
    x = 291,055.31

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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.