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Finding the Fourth Proportional to 520,698.74, 718,595.25 and 294,365.30

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Solution

The fourth proportional to 520,698.74, 718,595.25 and 294,365.30 is: 406,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,698.74 : 718,595.25 = 294,365.30 : x
  2. Step 2: Convert to fraction form
    520,698.74/718,595.25 = 294,365.30/x
  3. Step 3: Cross multiply
    520,698.74x = 718,595.25 × 294,365.30
  4. Step 4: Simplify right side
    520,698.74x = 211,529,506,344.83
  5. Step 5: Solve for x
    x = 211,529,506,344.83/520,698.74
  6. Step 6: Final answer
    x = 406,241.63

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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.