Home / 1,128,655.76-1,557,564-619,405.52

Finding the Fourth Proportional to 1,128,655.76, 1,557,564 and 619,405.52

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Solution

The fourth proportional to 1,128,655.76, 1,557,564 and 619,405.52 is: 854,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,655.76 : 1,557,564 = 619,405.52 : x
  2. Step 2: Convert to fraction form
    1,128,655.76/1,557,564 = 619,405.52/x
  3. Step 3: Cross multiply
    1,128,655.76x = 1,557,564 × 619,405.52
  4. Step 4: Simplify right side
    1,128,655.76x = 964,763,739,353.28
  5. Step 5: Solve for x
    x = 964,763,739,353.28/1,128,655.76
  6. Step 6: Final answer
    x = 854,790.07

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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.