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Finding the Fourth Proportional to 401,030.60, 601,545.90 and 248,815.40

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Solution

The fourth proportional to 401,030.60, 601,545.90 and 248,815.40 is: 373,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,030.60 : 601,545.90 = 248,815.40 : x
  2. Step 2: Convert to fraction form
    401,030.60/601,545.90 = 248,815.40/x
  3. Step 3: Cross multiply
    401,030.60x = 601,545.90 × 248,815.40
  4. Step 4: Simplify right side
    401,030.60x = 149,673,883,726.86
  5. Step 5: Solve for x
    x = 149,673,883,726.86/401,030.60
  6. Step 6: Final answer
    x = 373,223.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.