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Finding the Fourth Proportional to 328,683.55, 453,574.10 and 185,456.92

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Solution

The fourth proportional to 328,683.55, 453,574.10 and 185,456.92 is: 255,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,683.55 : 453,574.10 = 185,456.92 : x
  2. Step 2: Convert to fraction form
    328,683.55/453,574.10 = 185,456.92/x
  3. Step 3: Cross multiply
    328,683.55x = 453,574.10 × 185,456.92
  4. Step 4: Simplify right side
    328,683.55x = 84,118,454,650.49
  5. Step 5: Solve for x
    x = 84,118,454,650.49/328,683.55
  6. Step 6: Final answer
    x = 255,925.36

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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.