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Finding the Fourth Proportional to 508,448.33, 701,987.39 and 315,061.26

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Solution

The fourth proportional to 508,448.33, 701,987.39 and 315,061.26 is: 434,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,448.33 : 701,987.39 = 315,061.26 : x
  2. Step 2: Convert to fraction form
    508,448.33/701,987.39 = 315,061.26/x
  3. Step 3: Cross multiply
    508,448.33x = 701,987.39 × 315,061.26
  4. Step 4: Simplify right side
    508,448.33x = 221,169,031,597.51
  5. Step 5: Solve for x
    x = 221,169,031,597.51/508,448.33
  6. Step 6: Final answer
    x = 434,988.22

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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.