Home / 527,618.45-791,421.83-128,259.60

Finding the Fourth Proportional to 527,618.45, 791,421.83 and 128,259.60

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Solution

The fourth proportional to 527,618.45, 791,421.83 and 128,259.60 is: 192,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,618.45 : 791,421.83 = 128,259.60 : x
  2. Step 2: Convert to fraction form
    527,618.45/791,421.83 = 128,259.60/x
  3. Step 3: Cross multiply
    527,618.45x = 791,421.83 × 128,259.60
  4. Step 4: Simplify right side
    527,618.45x = 101,507,447,347.07
  5. Step 5: Solve for x
    x = 101,507,447,347.07/527,618.45
  6. Step 6: Final answer
    x = 192,387.98

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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.