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Finding the Fourth Proportional to 295,989.60, 444,016.80 and 286,658.40

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Solution

The fourth proportional to 295,989.60, 444,016.80 and 286,658.40 is: 430,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,989.60 : 444,016.80 = 286,658.40 : x
  2. Step 2: Convert to fraction form
    295,989.60/444,016.80 = 286,658.40/x
  3. Step 3: Cross multiply
    295,989.60x = 444,016.80 × 286,658.40
  4. Step 4: Simplify right side
    295,989.60x = 127,281,145,461.12
  5. Step 5: Solve for x
    x = 127,281,145,461.12/295,989.60
  6. Step 6: Final answer
    x = 430,018.98

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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.