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Finding the Fourth Proportional to 473,488.30, 653,429.55 and 258,648.40

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Solution

The fourth proportional to 473,488.30, 653,429.55 and 258,648.40 is: 356,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,488.30 : 653,429.55 = 258,648.40 : x
  2. Step 2: Convert to fraction form
    473,488.30/653,429.55 = 258,648.40/x
  3. Step 3: Cross multiply
    473,488.30x = 653,429.55 × 258,648.40
  4. Step 4: Simplify right side
    473,488.30x = 169,008,507,620.22
  5. Step 5: Solve for x
    x = 169,008,507,620.22/473,488.30
  6. Step 6: Final answer
    x = 356,943.37

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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.