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Finding the Fourth Proportional to 216,008.40, 302,722.80 and 216,008.40

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Solution

The fourth proportional to 216,008.40, 302,722.80 and 216,008.40 is: 302,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,008.40 : 302,722.80 = 216,008.40 : x
  2. Step 2: Convert to fraction form
    216,008.40/302,722.80 = 216,008.40/x
  3. Step 3: Cross multiply
    216,008.40x = 302,722.80 × 216,008.40
  4. Step 4: Simplify right side
    216,008.40x = 65,390,667,671.52
  5. Step 5: Solve for x
    x = 65,390,667,671.52/216,008.40
  6. Step 6: Final answer
    x = 302,722.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.