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Finding the Fourth Proportional to 552,715.50, 762,746.02 and 310,998.39

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Solution

The fourth proportional to 552,715.50, 762,746.02 and 310,998.39 is: 429,177.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,715.50 : 762,746.02 = 310,998.39 : x
  2. Step 2: Convert to fraction form
    552,715.50/762,746.02 = 310,998.39/x
  3. Step 3: Cross multiply
    552,715.50x = 762,746.02 × 310,998.39
  4. Step 4: Simplify right side
    552,715.50x = 237,212,780,561.11
  5. Step 5: Solve for x
    x = 237,212,780,561.11/552,715.50
  6. Step 6: Final answer
    x = 429,177.00

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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.