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Finding the Fourth Proportional to 674,298.55, 929,663.76 and 480,926.71

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Solution

The fourth proportional to 674,298.55, 929,663.76 and 480,926.71 is: 663,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,298.55 : 929,663.76 = 480,926.71 : x
  2. Step 2: Convert to fraction form
    674,298.55/929,663.76 = 480,926.71/x
  3. Step 3: Cross multiply
    674,298.55x = 929,663.76 × 480,926.71
  4. Step 4: Simplify right side
    674,298.55x = 447,100,133,503.03
  5. Step 5: Solve for x
    x = 447,100,133,503.03/674,298.55
  6. Step 6: Final answer
    x = 663,059.61

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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.