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Finding the Fourth Proportional to 404,870.60, 607,305.90 and 124,401.80

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Solution

The fourth proportional to 404,870.60, 607,305.90 and 124,401.80 is: 186,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,870.60 : 607,305.90 = 124,401.80 : x
  2. Step 2: Convert to fraction form
    404,870.60/607,305.90 = 124,401.80/x
  3. Step 3: Cross multiply
    404,870.60x = 607,305.90 × 124,401.80
  4. Step 4: Simplify right side
    404,870.60x = 75,549,947,110.62
  5. Step 5: Solve for x
    x = 75,549,947,110.62/404,870.60
  6. Step 6: Final answer
    x = 186,602.70

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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.