Home / 784,385.40-1,177,355.70-385,476.60

Finding the Fourth Proportional to 784,385.40, 1,177,355.70 and 385,476.60

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Solution

The fourth proportional to 784,385.40, 1,177,355.70 and 385,476.60 is: 578,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,385.40 : 1,177,355.70 = 385,476.60 : x
  2. Step 2: Convert to fraction form
    784,385.40/1,177,355.70 = 385,476.60/x
  3. Step 3: Cross multiply
    784,385.40x = 1,177,355.70 × 385,476.60
  4. Step 4: Simplify right side
    784,385.40x = 453,843,072,226.62
  5. Step 5: Solve for x
    x = 453,843,072,226.62/784,385.40
  6. Step 6: Final answer
    x = 578,597.04

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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.