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Finding the Fourth Proportional to 404,903.60, 607,369.80 and 124,420.40

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Solution

The fourth proportional to 404,903.60, 607,369.80 and 124,420.40 is: 186,635.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,903.60 : 607,369.80 = 124,420.40 : x
  2. Step 2: Convert to fraction form
    404,903.60/607,369.80 = 124,420.40/x
  3. Step 3: Cross multiply
    404,903.60x = 607,369.80 × 124,420.40
  4. Step 4: Simplify right side
    404,903.60x = 75,569,193,463.92
  5. Step 5: Solve for x
    x = 75,569,193,463.92/404,903.60
  6. Step 6: Final answer
    x = 186,635.02

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1.5x scale

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.