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Finding the Fourth Proportional to 611,108.54, 843,484.80 and 417,594.57

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Solution

The fourth proportional to 611,108.54, 843,484.80 and 417,594.57 is: 576,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,108.54 : 843,484.80 = 417,594.57 : x
  2. Step 2: Convert to fraction form
    611,108.54/843,484.80 = 417,594.57/x
  3. Step 3: Cross multiply
    611,108.54x = 843,484.80 × 417,594.57
  4. Step 4: Simplify right side
    611,108.54x = 352,234,672,357.54
  5. Step 5: Solve for x
    x = 352,234,672,357.54/611,108.54
  6. Step 6: Final answer
    x = 576,386.44

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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.