Home / 669,968.40-1,003,397.40-654,416.40

Finding the Fourth Proportional to 669,968.40, 1,003,397.40 and 654,416.40

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Solution

The fourth proportional to 669,968.40, 1,003,397.40 and 654,416.40 is: 980,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,968.40 : 1,003,397.40 = 654,416.40 : x
  2. Step 2: Convert to fraction form
    669,968.40/1,003,397.40 = 654,416.40/x
  3. Step 3: Cross multiply
    669,968.40x = 1,003,397.40 × 654,416.40
  4. Step 4: Simplify right side
    669,968.40x = 656,639,714,277.36
  5. Step 5: Solve for x
    x = 656,639,714,277.36/669,968.40
  6. Step 6: Final answer
    x = 980,105.50

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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.