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Finding the Fourth Proportional to 611,461.76, 843,628.01 and 353,244.47

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Solution

The fourth proportional to 611,461.76, 843,628.01 and 353,244.47 is: 487,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,461.76 : 843,628.01 = 353,244.47 : x
  2. Step 2: Convert to fraction form
    611,461.76/843,628.01 = 353,244.47/x
  3. Step 3: Cross multiply
    611,461.76x = 843,628.01 × 353,244.47
  4. Step 4: Simplify right side
    611,461.76x = 298,006,923,285.24
  5. Step 5: Solve for x
    x = 298,006,923,285.24/611,461.76
  6. Step 6: Final answer
    x = 487,368.05

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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.