Home / 389,434.40-583,921.20-202,810.40

Finding the Fourth Proportional to 389,434.40, 583,921.20 and 202,810.40

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Solution

The fourth proportional to 389,434.40, 583,921.20 and 202,810.40 is: 304,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,434.40 : 583,921.20 = 202,810.40 : x
  2. Step 2: Convert to fraction form
    389,434.40/583,921.20 = 202,810.40/x
  3. Step 3: Cross multiply
    389,434.40x = 583,921.20 × 202,810.40
  4. Step 4: Simplify right side
    389,434.40x = 118,425,292,140.48
  5. Step 5: Solve for x
    x = 118,425,292,140.48/389,434.40
  6. Step 6: Final answer
    x = 304,095.61

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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.