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Finding the Fourth Proportional to 545,877.96, 818,704 and 146,423.76

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Solution

The fourth proportional to 545,877.96, 818,704 and 146,423.76 is: 219,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,877.96 : 818,704 = 146,423.76 : x
  2. Step 2: Convert to fraction form
    545,877.96/818,704 = 146,423.76/x
  3. Step 3: Cross multiply
    545,877.96x = 818,704 × 146,423.76
  4. Step 4: Simplify right side
    545,877.96x = 119,877,718,007.04
  5. Step 5: Solve for x
    x = 119,877,718,007.04/545,877.96
  6. Step 6: Final answer
    x = 219,605.35

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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.