Home / 260,113.02-390,195.52-70,576.40

Finding the Fourth Proportional to 260,113.02, 390,195.52 and 70,576.40

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Solution

The fourth proportional to 260,113.02, 390,195.52 and 70,576.40 is: 105,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,113.02 : 390,195.52 = 70,576.40 : x
  2. Step 2: Convert to fraction form
    260,113.02/390,195.52 = 70,576.40/x
  3. Step 3: Cross multiply
    260,113.02x = 390,195.52 × 70,576.40
  4. Step 4: Simplify right side
    260,113.02x = 27,538,595,097.73
  5. Step 5: Solve for x
    x = 27,538,595,097.73/260,113.02
  6. Step 6: Final answer
    x = 105,871.65

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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.