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Finding the Fourth Proportional to 555,609.30, 832,429.80 and 470,972.40

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Solution

The fourth proportional to 555,609.30, 832,429.80 and 470,972.40 is: 705,624.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,609.30 : 832,429.80 = 470,972.40 : x
  2. Step 2: Convert to fraction form
    555,609.30/832,429.80 = 470,972.40/x
  3. Step 3: Cross multiply
    555,609.30x = 832,429.80 × 470,972.40
  4. Step 4: Simplify right side
    555,609.30x = 392,051,460,737.52
  5. Step 5: Solve for x
    x = 392,051,460,737.52/555,609.30
  6. Step 6: Final answer
    x = 705,624.37

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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.