Home / 278,775.28-384,869.04-183,558.40

Finding the Fourth Proportional to 278,775.28, 384,869.04 and 183,558.40

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Solution

The fourth proportional to 278,775.28, 384,869.04 and 183,558.40 is: 253,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,775.28 : 384,869.04 = 183,558.40 : x
  2. Step 2: Convert to fraction form
    278,775.28/384,869.04 = 183,558.40/x
  3. Step 3: Cross multiply
    278,775.28x = 384,869.04 × 183,558.40
  4. Step 4: Simplify right side
    278,775.28x = 70,645,945,191.94
  5. Step 5: Solve for x
    x = 70,645,945,191.94/278,775.28
  6. Step 6: Final answer
    x = 253,415.39

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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.