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Finding the Fourth Proportional to 425,509.07, 587,205.21 and 234,522.45

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Solution

The fourth proportional to 425,509.07, 587,205.21 and 234,522.45 is: 323,642.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,509.07 : 587,205.21 = 234,522.45 : x
  2. Step 2: Convert to fraction form
    425,509.07/587,205.21 = 234,522.45/x
  3. Step 3: Cross multiply
    425,509.07x = 587,205.21 × 234,522.45
  4. Step 4: Simplify right side
    425,509.07x = 137,712,804,501.97
  5. Step 5: Solve for x
    x = 137,712,804,501.97/425,509.07
  6. Step 6: Final answer
    x = 323,642.47

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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.