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Finding the Fourth Proportional to 358,056.80, 537,085.20 and 218,088.80

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Solution

The fourth proportional to 358,056.80, 537,085.20 and 218,088.80 is: 327,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,056.80 : 537,085.20 = 218,088.80 : x
  2. Step 2: Convert to fraction form
    358,056.80/537,085.20 = 218,088.80/x
  3. Step 3: Cross multiply
    358,056.80x = 537,085.20 × 218,088.80
  4. Step 4: Simplify right side
    358,056.80x = 117,132,266,765.76
  5. Step 5: Solve for x
    x = 117,132,266,765.76/358,056.80
  6. Step 6: Final answer
    x = 327,133.20

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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.