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Finding the Fourth Proportional to 292,378.42, 403,482.08 and 158,242.42

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Solution

The fourth proportional to 292,378.42, 403,482.08 and 158,242.42 is: 218,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,378.42 : 403,482.08 = 158,242.42 : x
  2. Step 2: Convert to fraction form
    292,378.42/403,482.08 = 158,242.42/x
  3. Step 3: Cross multiply
    292,378.42x = 403,482.08 × 158,242.42
  4. Step 4: Simplify right side
    292,378.42x = 63,847,980,765.83
  5. Step 5: Solve for x
    x = 63,847,980,765.83/292,378.42
  6. Step 6: Final answer
    x = 218,374.46

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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.