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Finding the Fourth Proportional to 483,905.60, 725,080.80 and 404,590.40

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Solution

The fourth proportional to 483,905.60, 725,080.80 and 404,590.40 is: 606,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,905.60 : 725,080.80 = 404,590.40 : x
  2. Step 2: Convert to fraction form
    483,905.60/725,080.80 = 404,590.40/x
  3. Step 3: Cross multiply
    483,905.60x = 725,080.80 × 404,590.40
  4. Step 4: Simplify right side
    483,905.60x = 293,360,730,904.32
  5. Step 5: Solve for x
    x = 293,360,730,904.32/483,905.60
  6. Step 6: Final answer
    x = 606,235.45

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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.