Home / 1,528,056.30-2,290,410.45-768,686.70

Finding the Fourth Proportional to 1,528,056.30, 2,290,410.45 and 768,686.70

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Solution

The fourth proportional to 1,528,056.30, 2,290,410.45 and 768,686.70 is: 1,152,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,056.30 : 2,290,410.45 = 768,686.70 : x
  2. Step 2: Convert to fraction form
    1,528,056.30/2,290,410.45 = 768,686.70/x
  3. Step 3: Cross multiply
    1,528,056.30x = 2,290,410.45 × 768,686.70
  4. Step 4: Simplify right side
    1,528,056.30x = 1,760,608,050,456.02
  5. Step 5: Solve for x
    x = 1,760,608,050,456.02/1,528,056.30
  6. Step 6: Final answer
    x = 1,152,187.95

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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.