Home / 567,014.07-781,402.80-405,588.85

Finding the Fourth Proportional to 567,014.07, 781,402.80 and 405,588.85

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Solution

The fourth proportional to 567,014.07, 781,402.80 and 405,588.85 is: 558,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,014.07 : 781,402.80 = 405,588.85 : x
  2. Step 2: Convert to fraction form
    567,014.07/781,402.80 = 405,588.85/x
  3. Step 3: Cross multiply
    567,014.07x = 781,402.80 × 405,588.85
  4. Step 4: Simplify right side
    567,014.07x = 316,928,263,038.78
  5. Step 5: Solve for x
    x = 316,928,263,038.78/567,014.07
  6. Step 6: Final answer
    x = 558,942.50

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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.