Home / 353,619.40-530,429.10-347,787.40

Finding the Fourth Proportional to 353,619.40, 530,429.10 and 347,787.40

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Solution

The fourth proportional to 353,619.40, 530,429.10 and 347,787.40 is: 521,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,619.40 : 530,429.10 = 347,787.40 : x
  2. Step 2: Convert to fraction form
    353,619.40/530,429.10 = 347,787.40/x
  3. Step 3: Cross multiply
    353,619.40x = 530,429.10 × 347,787.40
  4. Step 4: Simplify right side
    353,619.40x = 184,476,557,573.34
  5. Step 5: Solve for x
    x = 184,476,557,573.34/353,619.40
  6. Step 6: Final answer
    x = 521,681.10

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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.