Home / 857,701.28-1,183,628.42-475,730.80

Finding the Fourth Proportional to 857,701.28, 1,183,628.42 and 475,730.80

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Solution

The fourth proportional to 857,701.28, 1,183,628.42 and 475,730.80 is: 656,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,701.28 : 1,183,628.42 = 475,730.80 : x
  2. Step 2: Convert to fraction form
    857,701.28/1,183,628.42 = 475,730.80/x
  3. Step 3: Cross multiply
    857,701.28x = 1,183,628.42 × 475,730.80
  4. Step 4: Simplify right side
    857,701.28x = 563,088,495,149.34
  5. Step 5: Solve for x
    x = 563,088,495,149.34/857,701.28
  6. Step 6: Final answer
    x = 656,508.87

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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.