Home / 866,807.40-1,196,197.29-484,809.78

Finding the Fourth Proportional to 866,807.40, 1,196,197.29 and 484,809.78

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Solution

The fourth proportional to 866,807.40, 1,196,197.29 and 484,809.78 is: 669,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,807.40 : 1,196,197.29 = 484,809.78 : x
  2. Step 2: Convert to fraction form
    866,807.40/1,196,197.29 = 484,809.78/x
  3. Step 3: Cross multiply
    866,807.40x = 1,196,197.29 × 484,809.78
  4. Step 4: Simplify right side
    866,807.40x = 579,928,145,001.50
  5. Step 5: Solve for x
    x = 579,928,145,001.50/866,807.40
  6. Step 6: Final answer
    x = 669,039.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.