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Finding the Fourth Proportional to 893,840.40, 1,339,594.20 and 360,925.20

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Solution

The fourth proportional to 893,840.40, 1,339,594.20 and 360,925.20 is: 540,916.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,840.40 : 1,339,594.20 = 360,925.20 : x
  2. Step 2: Convert to fraction form
    893,840.40/1,339,594.20 = 360,925.20/x
  3. Step 3: Cross multiply
    893,840.40x = 1,339,594.20 × 360,925.20
  4. Step 4: Simplify right side
    893,840.40x = 483,493,304,553.84
  5. Step 5: Solve for x
    x = 483,493,304,553.84/893,840.40
  6. Step 6: Final answer
    x = 540,916.82

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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.