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Finding the Fourth Proportional to 569,759.04, 786,352.74 and 354,968.28

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Solution

The fourth proportional to 569,759.04, 786,352.74 and 354,968.28 is: 489,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,759.04 : 786,352.74 = 354,968.28 : x
  2. Step 2: Convert to fraction form
    569,759.04/786,352.74 = 354,968.28/x
  3. Step 3: Cross multiply
    569,759.04x = 786,352.74 × 354,968.28
  4. Step 4: Simplify right side
    569,759.04x = 279,130,279,591.09
  5. Step 5: Solve for x
    x = 279,130,279,591.09/569,759.04
  6. Step 6: Final answer
    x = 489,909.35

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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.