Home / 811,929.60-1,216,857.60-624,009.60

Finding the Fourth Proportional to 811,929.60, 1,216,857.60 and 624,009.60

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Solution

The fourth proportional to 811,929.60, 1,216,857.60 and 624,009.60 is: 935,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,929.60 : 1,216,857.60 = 624,009.60 : x
  2. Step 2: Convert to fraction form
    811,929.60/1,216,857.60 = 624,009.60/x
  3. Step 3: Cross multiply
    811,929.60x = 1,216,857.60 × 624,009.60
  4. Step 4: Simplify right side
    811,929.60x = 759,330,824,232.96
  5. Step 5: Solve for x
    x = 759,330,824,232.96/811,929.60
  6. Step 6: Final answer
    x = 935,217.57

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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.