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Finding the Fourth Proportional to 696,056.54, 960,542.01 and 405,649.58

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Solution

The fourth proportional to 696,056.54, 960,542.01 and 405,649.58 is: 559,787.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,056.54 : 960,542.01 = 405,649.58 : x
  2. Step 2: Convert to fraction form
    696,056.54/960,542.01 = 405,649.58/x
  3. Step 3: Cross multiply
    696,056.54x = 960,542.01 × 405,649.58
  4. Step 4: Simplify right side
    696,056.54x = 389,643,458,126.15
  5. Step 5: Solve for x
    x = 389,643,458,126.15/696,056.54
  6. Step 6: Final answer
    x = 559,787.08

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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.