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Finding the Fourth Proportional to 292,289.16, 403,360.92 and 171,405.84

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Solution

The fourth proportional to 292,289.16, 403,360.92 and 171,405.84 is: 236,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,289.16 : 403,360.92 = 171,405.84 : x
  2. Step 2: Convert to fraction form
    292,289.16/403,360.92 = 171,405.84/x
  3. Step 3: Cross multiply
    292,289.16x = 403,360.92 × 171,405.84
  4. Step 4: Simplify right side
    292,289.16x = 69,138,417,315.77
  5. Step 5: Solve for x
    x = 69,138,417,315.77/292,289.16
  6. Step 6: Final answer
    x = 236,541.16

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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.