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Finding the Fourth Proportional to 292,298.79, 403,439.73 and 171,478.89

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Solution

The fourth proportional to 292,298.79, 403,439.73 and 171,478.89 is: 236,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,298.79 : 403,439.73 = 171,478.89 : x
  2. Step 2: Convert to fraction form
    292,298.79/403,439.73 = 171,478.89/x
  3. Step 3: Cross multiply
    292,298.79x = 403,439.73 × 171,478.89
  4. Step 4: Simplify right side
    292,298.79x = 69,181,395,065.10
  5. Step 5: Solve for x
    x = 69,181,395,065.10/292,298.79
  6. Step 6: Final answer
    x = 236,680.41

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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.