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Finding the Fourth Proportional to 473,676.45, 653,678.06 and 258,816.49

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Solution

The fourth proportional to 473,676.45, 653,678.06 and 258,816.49 is: 357,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,676.45 : 653,678.06 = 258,816.49 : x
  2. Step 2: Convert to fraction form
    473,676.45/653,678.06 = 258,816.49/x
  3. Step 3: Cross multiply
    473,676.45x = 653,678.06 × 258,816.49
  4. Step 4: Simplify right side
    473,676.45x = 169,182,661,079.21
  5. Step 5: Solve for x
    x = 169,182,661,079.21/473,676.45
  6. Step 6: Final answer
    x = 357,169.25

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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.