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Finding the Fourth Proportional to 535,760.90, 804,562.95 and 379,088.90

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Solution

The fourth proportional to 535,760.90, 804,562.95 and 379,088.90 is: 569,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,760.90 : 804,562.95 = 379,088.90 : x
  2. Step 2: Convert to fraction form
    535,760.90/804,562.95 = 379,088.90/x
  3. Step 3: Cross multiply
    535,760.90x = 804,562.95 × 379,088.90
  4. Step 4: Simplify right side
    535,760.90x = 305,000,883,696.26
  5. Step 5: Solve for x
    x = 305,000,883,696.26/535,760.90
  6. Step 6: Final answer
    x = 569,285.45

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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.