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Finding the Fourth Proportional to 671,929.80, 927,263.16 and 370,123.80

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Solution

The fourth proportional to 671,929.80, 927,263.16 and 370,123.80 is: 510,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,929.80 : 927,263.16 = 370,123.80 : x
  2. Step 2: Convert to fraction form
    671,929.80/927,263.16 = 370,123.80/x
  3. Step 3: Cross multiply
    671,929.80x = 927,263.16 × 370,123.80
  4. Step 4: Simplify right side
    671,929.80x = 343,202,164,379.21
  5. Step 5: Solve for x
    x = 343,202,164,379.21/671,929.80
  6. Step 6: Final answer
    x = 510,770.86

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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.