Home / 818,823.40-1,226,852.70-538,196.20

Finding the Fourth Proportional to 818,823.40, 1,226,852.70 and 538,196.20

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Solution

The fourth proportional to 818,823.40, 1,226,852.70 and 538,196.20 is: 806,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,823.40 : 1,226,852.70 = 538,196.20 : x
  2. Step 2: Convert to fraction form
    818,823.40/1,226,852.70 = 538,196.20/x
  3. Step 3: Cross multiply
    818,823.40x = 1,226,852.70 × 538,196.20
  4. Step 4: Simplify right side
    818,823.40x = 660,287,461,099.74
  5. Step 5: Solve for x
    x = 660,287,461,099.74/818,823.40
  6. Step 6: Final answer
    x = 806,385.68

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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.