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Finding the Fourth Proportional to 541,312.80, 810,802.80 and 448,000.80

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Solution

The fourth proportional to 541,312.80, 810,802.80 and 448,000.80 is: 671,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,312.80 : 810,802.80 = 448,000.80 : x
  2. Step 2: Convert to fraction form
    541,312.80/810,802.80 = 448,000.80/x
  3. Step 3: Cross multiply
    541,312.80x = 810,802.80 × 448,000.80
  4. Step 4: Simplify right side
    541,312.80x = 363,240,303,042.24
  5. Step 5: Solve for x
    x = 363,240,303,042.24/541,312.80
  6. Step 6: Final answer
    x = 671,035.87

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1.5x scale

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.