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Finding the Fourth Proportional to 298,405.81, 411,807.68 and 183,641.77

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Solution

The fourth proportional to 298,405.81, 411,807.68 and 183,641.77 is: 253,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,405.81 : 411,807.68 = 183,641.77 : x
  2. Step 2: Convert to fraction form
    298,405.81/411,807.68 = 183,641.77/x
  3. Step 3: Cross multiply
    298,405.81x = 411,807.68 × 183,641.77
  4. Step 4: Simplify right side
    298,405.81x = 75,625,091,254.79
  5. Step 5: Solve for x
    x = 75,625,091,254.79/298,405.81
  6. Step 6: Final answer
    x = 253,430.36

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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.