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Finding the Fourth Proportional to 530,312.80, 794,302.80 and 460,328.80

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Solution

The fourth proportional to 530,312.80, 794,302.80 and 460,328.80 is: 689,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,312.80 : 794,302.80 = 460,328.80 : x
  2. Step 2: Convert to fraction form
    530,312.80/794,302.80 = 460,328.80/x
  3. Step 3: Cross multiply
    530,312.80x = 794,302.80 × 460,328.80
  4. Step 4: Simplify right side
    530,312.80x = 365,640,454,760.64
  5. Step 5: Solve for x
    x = 365,640,454,760.64/530,312.80
  6. Step 6: Final answer
    x = 689,480.73

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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.