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Finding the Fourth Proportional to 363,648.42, 501,802.65 and 210,637.69

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Solution

The fourth proportional to 363,648.42, 501,802.65 and 210,637.69 is: 290,661.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,648.42 : 501,802.65 = 210,637.69 : x
  2. Step 2: Convert to fraction form
    363,648.42/501,802.65 = 210,637.69/x
  3. Step 3: Cross multiply
    363,648.42x = 501,802.65 × 210,637.69
  4. Step 4: Simplify right side
    363,648.42x = 105,698,549,777.37
  5. Step 5: Solve for x
    x = 105,698,549,777.37/363,648.42
  6. Step 6: Final answer
    x = 290,661.38

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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.