Home / 813,415.60-1,220,123.40-655,951.60

Finding the Fourth Proportional to 813,415.60, 1,220,123.40 and 655,951.60

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Solution

The fourth proportional to 813,415.60, 1,220,123.40 and 655,951.60 is: 983,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,415.60 : 1,220,123.40 = 655,951.60 : x
  2. Step 2: Convert to fraction form
    813,415.60/1,220,123.40 = 655,951.60/x
  3. Step 3: Cross multiply
    813,415.60x = 1,220,123.40 × 655,951.60
  4. Step 4: Simplify right side
    813,415.60x = 800,341,896,427.44
  5. Step 5: Solve for x
    x = 800,341,896,427.44/813,415.60
  6. Step 6: Final answer
    x = 983,927.40

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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.