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Finding the Fourth Proportional to 677,049.40, 933,903.30 and 435,645.64

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Solution

The fourth proportional to 677,049.40, 933,903.30 and 435,645.64 is: 600,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,049.40 : 933,903.30 = 435,645.64 : x
  2. Step 2: Convert to fraction form
    677,049.40/933,903.30 = 435,645.64/x
  3. Step 3: Cross multiply
    677,049.40x = 933,903.30 × 435,645.64
  4. Step 4: Simplify right side
    677,049.40x = 406,850,900,826.61
  5. Step 5: Solve for x
    x = 406,850,900,826.61/677,049.40
  6. Step 6: Final answer
    x = 600,917.60

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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.