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Finding the Fourth Proportional to 298,054.18, 411,312.90 and 169,017.13

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Solution

The fourth proportional to 298,054.18, 411,312.90 and 169,017.13 is: 233,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,054.18 : 411,312.90 = 169,017.13 : x
  2. Step 2: Convert to fraction form
    298,054.18/411,312.90 = 169,017.13/x
  3. Step 3: Cross multiply
    298,054.18x = 411,312.90 × 169,017.13
  4. Step 4: Simplify right side
    298,054.18x = 69,518,925,889.98
  5. Step 5: Solve for x
    x = 69,518,925,889.98/298,054.18
  6. Step 6: Final answer
    x = 233,242.58

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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.