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Finding the Fourth Proportional to 480,614.28, 720,970.71 and 181,346.67

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Solution

The fourth proportional to 480,614.28, 720,970.71 and 181,346.67 is: 272,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,614.28 : 720,970.71 = 181,346.67 : x
  2. Step 2: Convert to fraction form
    480,614.28/720,970.71 = 181,346.67/x
  3. Step 3: Cross multiply
    480,614.28x = 720,970.71 × 181,346.67
  4. Step 4: Simplify right side
    480,614.28x = 130,745,637,426.04
  5. Step 5: Solve for x
    x = 130,745,637,426.04/480,614.28
  6. Step 6: Final answer
    x = 272,038.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.