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Finding the Fourth Proportional to 443,715.93, 612,328.01 and 242,511.93

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Solution

The fourth proportional to 443,715.93, 612,328.01 and 242,511.93 is: 334,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,715.93 : 612,328.01 = 242,511.93 : x
  2. Step 2: Convert to fraction form
    443,715.93/612,328.01 = 242,511.93/x
  3. Step 3: Cross multiply
    443,715.93x = 612,328.01 × 242,511.93
  4. Step 4: Simplify right side
    443,715.93x = 148,496,846,285.60
  5. Step 5: Solve for x
    x = 148,496,846,285.60/443,715.93
  6. Step 6: Final answer
    x = 334,666.48

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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.