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Finding the Fourth Proportional to 292,344.84, 403,435.80 and 158,208.84

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Solution

The fourth proportional to 292,344.84, 403,435.80 and 158,208.84 is: 218,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,344.84 : 403,435.80 = 158,208.84 : x
  2. Step 2: Convert to fraction form
    292,344.84/403,435.80 = 158,208.84/x
  3. Step 3: Cross multiply
    292,344.84x = 403,435.80 × 158,208.84
  4. Step 4: Simplify right side
    292,344.84x = 63,827,109,932.47
  5. Step 5: Solve for x
    x = 63,827,109,932.47/292,344.84
  6. Step 6: Final answer
    x = 218,328.16

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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.