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Finding the Fourth Proportional to 573,263.60, 789,296.76 and 520,119.48

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Solution

The fourth proportional to 573,263.60, 789,296.76 and 520,119.48 is: 716,125.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,263.60 : 789,296.76 = 520,119.48 : x
  2. Step 2: Convert to fraction form
    573,263.60/789,296.76 = 520,119.48/x
  3. Step 3: Cross multiply
    573,263.60x = 789,296.76 × 520,119.48
  4. Step 4: Simplify right side
    573,263.60x = 410,528,620,376.89
  5. Step 5: Solve for x
    x = 410,528,620,376.89/573,263.60
  6. Step 6: Final answer
    x = 716,125.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.