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Finding the Fourth Proportional to 657,817.99, 907,792.55 and 367,441.78

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Solution

The fourth proportional to 657,817.99, 907,792.55 and 367,441.78 is: 507,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,817.99 : 907,792.55 = 367,441.78 : x
  2. Step 2: Convert to fraction form
    657,817.99/907,792.55 = 367,441.78/x
  3. Step 3: Cross multiply
    657,817.99x = 907,792.55 × 367,441.78
  4. Step 4: Simplify right side
    657,817.99x = 333,560,910,442.74
  5. Step 5: Solve for x
    x = 333,560,910,442.74/657,817.99
  6. Step 6: Final answer
    x = 507,071.74

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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.