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Finding the Fourth Proportional to 370,491.80, 520,088.20 and 370,491.80

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Solution

The fourth proportional to 370,491.80, 520,088.20 and 370,491.80 is: 520,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,491.80 : 520,088.20 = 370,491.80 : x
  2. Step 2: Convert to fraction form
    370,491.80/520,088.20 = 370,491.80/x
  3. Step 3: Cross multiply
    370,491.80x = 520,088.20 × 370,491.80
  4. Step 4: Simplify right side
    370,491.80x = 192,688,413,376.76
  5. Step 5: Solve for x
    x = 192,688,413,376.76/370,491.80
  6. Step 6: Final answer
    x = 520,088.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.