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Finding the Fourth Proportional to 653,058.78, 979,402.68 and 253,614.30

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Solution

The fourth proportional to 653,058.78, 979,402.68 and 253,614.30 is: 380,349.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,058.78 : 979,402.68 = 253,614.30 : x
  2. Step 2: Convert to fraction form
    653,058.78/979,402.68 = 253,614.30/x
  3. Step 3: Cross multiply
    653,058.78x = 979,402.68 × 253,614.30
  4. Step 4: Simplify right side
    653,058.78x = 248,390,525,106.32
  5. Step 5: Solve for x
    x = 248,390,525,106.32/653,058.78
  6. Step 6: Final answer
    x = 380,349.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.