Home / 570,921.40-856,382.10-171,623.80

Finding the Fourth Proportional to 570,921.40, 856,382.10 and 171,623.80

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Solution

The fourth proportional to 570,921.40, 856,382.10 and 171,623.80 is: 257,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,921.40 : 856,382.10 = 171,623.80 : x
  2. Step 2: Convert to fraction form
    570,921.40/856,382.10 = 171,623.80/x
  3. Step 3: Cross multiply
    570,921.40x = 856,382.10 × 171,623.80
  4. Step 4: Simplify right side
    570,921.40x = 146,975,550,253.98
  5. Step 5: Solve for x
    x = 146,975,550,253.98/570,921.40
  6. Step 6: Final answer
    x = 257,435.70

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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.