Home / 645,414.40-966,955.20-526,441.60

Finding the Fourth Proportional to 645,414.40, 966,955.20 and 526,441.60

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Solution

The fourth proportional to 645,414.40, 966,955.20 and 526,441.60 is: 788,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,414.40 : 966,955.20 = 526,441.60 : x
  2. Step 2: Convert to fraction form
    645,414.40/966,955.20 = 526,441.60/x
  3. Step 3: Cross multiply
    645,414.40x = 966,955.20 × 526,441.60
  4. Step 4: Simplify right side
    645,414.40x = 509,045,442,616.32
  5. Step 5: Solve for x
    x = 509,045,442,616.32/645,414.40
  6. Step 6: Final answer
    x = 788,711.01

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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.