Home / 919,405.60-1,376,548.80-469,153.60

Finding the Fourth Proportional to 919,405.60, 1,376,548.80 and 469,153.60

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Solution

The fourth proportional to 919,405.60, 1,376,548.80 and 469,153.60 is: 702,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,405.60 : 1,376,548.80 = 469,153.60 : x
  2. Step 2: Convert to fraction form
    919,405.60/1,376,548.80 = 469,153.60/x
  3. Step 3: Cross multiply
    919,405.60x = 1,376,548.80 × 469,153.60
  4. Step 4: Simplify right side
    919,405.60x = 645,812,825,095.68
  5. Step 5: Solve for x
    x = 645,812,825,095.68/919,405.60
  6. Step 6: Final answer
    x = 702,424.29

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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.