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Finding the Fourth Proportional to 575,814.30, 863,721.45 and 533,823.90

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Solution

The fourth proportional to 575,814.30, 863,721.45 and 533,823.90 is: 800,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,814.30 : 863,721.45 = 533,823.90 : x
  2. Step 2: Convert to fraction form
    575,814.30/863,721.45 = 533,823.90/x
  3. Step 3: Cross multiply
    575,814.30x = 863,721.45 × 533,823.90
  4. Step 4: Simplify right side
    575,814.30x = 461,075,152,952.66
  5. Step 5: Solve for x
    x = 461,075,152,952.66/575,814.30
  6. Step 6: Final answer
    x = 800,735.85

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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.