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Finding the Fourth Proportional to 510,346.26, 704,267.55 and 319,464.90

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Solution

The fourth proportional to 510,346.26, 704,267.55 and 319,464.90 is: 440,855.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,346.26 : 704,267.55 = 319,464.90 : x
  2. Step 2: Convert to fraction form
    510,346.26/704,267.55 = 319,464.90/x
  3. Step 3: Cross multiply
    510,346.26x = 704,267.55 × 319,464.90
  4. Step 4: Simplify right side
    510,346.26x = 224,988,762,434.00
  5. Step 5: Solve for x
    x = 224,988,762,434.00/510,346.26
  6. Step 6: Final answer
    x = 440,855.12

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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.