Home / 857,811.40-1,183,921.70-475,961.20

Finding the Fourth Proportional to 857,811.40, 1,183,921.70 and 475,961.20

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Solution

The fourth proportional to 857,811.40, 1,183,921.70 and 475,961.20 is: 656,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,811.40 : 1,183,921.70 = 475,961.20 : x
  2. Step 2: Convert to fraction form
    857,811.40/1,183,921.70 = 475,961.20/x
  3. Step 3: Cross multiply
    857,811.40x = 1,183,921.70 × 475,961.20
  4. Step 4: Simplify right side
    857,811.40x = 563,500,793,038.04
  5. Step 5: Solve for x
    x = 563,500,793,038.04/857,811.40
  6. Step 6: Final answer
    x = 656,905.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.