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Finding the Fourth Proportional to 473,640.09, 653,615.67 and 258,775.53

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Solution

The fourth proportional to 473,640.09, 653,615.67 and 258,775.53 is: 357,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,640.09 : 653,615.67 = 258,775.53 : x
  2. Step 2: Convert to fraction form
    473,640.09/653,615.67 = 258,775.53/x
  3. Step 3: Cross multiply
    473,640.09x = 653,615.67 × 258,775.53
  4. Step 4: Simplify right side
    473,640.09x = 169,139,741,420.56
  5. Step 5: Solve for x
    x = 169,139,741,420.56/473,640.09
  6. Step 6: Final answer
    x = 357,106.05

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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.