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Finding the Fourth Proportional to 506,926.06, 699,530.16 and 289,102.74

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Solution

The fourth proportional to 506,926.06, 699,530.16 and 289,102.74 is: 398,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,926.06 : 699,530.16 = 289,102.74 : x
  2. Step 2: Convert to fraction form
    506,926.06/699,530.16 = 289,102.74/x
  3. Step 3: Cross multiply
    506,926.06x = 699,530.16 × 289,102.74
  4. Step 4: Simplify right side
    506,926.06x = 202,236,085,968.64
  5. Step 5: Solve for x
    x = 202,236,085,968.64/506,926.06
  6. Step 6: Final answer
    x = 398,945.93

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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.