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Finding the Fourth Proportional to 668,830.76, 923,013.06 and 367,035.56

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Solution

The fourth proportional to 668,830.76, 923,013.06 and 367,035.56 is: 506,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,830.76 : 923,013.06 = 367,035.56 : x
  2. Step 2: Convert to fraction form
    668,830.76/923,013.06 = 367,035.56/x
  3. Step 3: Cross multiply
    668,830.76x = 923,013.06 × 367,035.56
  4. Step 4: Simplify right side
    668,830.76x = 338,778,615,364.41
  5. Step 5: Solve for x
    x = 338,778,615,364.41/668,830.76
  6. Step 6: Final answer
    x = 506,523.68

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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.