Home / 712,921.55-983,871.09-407,096.15

Finding the Fourth Proportional to 712,921.55, 983,871.09 and 407,096.15

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Solution

The fourth proportional to 712,921.55, 983,871.09 and 407,096.15 is: 561,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,921.55 : 983,871.09 = 407,096.15 : x
  2. Step 2: Convert to fraction form
    712,921.55/983,871.09 = 407,096.15/x
  3. Step 3: Cross multiply
    712,921.55x = 983,871.09 × 407,096.15
  4. Step 4: Simplify right side
    712,921.55x = 400,530,127,915.95
  5. Step 5: Solve for x
    x = 400,530,127,915.95/712,921.55
  6. Step 6: Final answer
    x = 561,815.15

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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.