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Finding the Fourth Proportional to 425,386.13, 587,045.21 and 234,411.84

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Solution

The fourth proportional to 425,386.13, 587,045.21 and 234,411.84 is: 323,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,386.13 : 587,045.21 = 234,411.84 : x
  2. Step 2: Convert to fraction form
    425,386.13/587,045.21 = 234,411.84/x
  3. Step 3: Cross multiply
    425,386.13x = 587,045.21 × 234,411.84
  4. Step 4: Simplify right side
    425,386.13x = 137,610,346,667.23
  5. Step 5: Solve for x
    x = 137,610,346,667.23/425,386.13
  6. Step 6: Final answer
    x = 323,495.15

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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.