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Finding the Fourth Proportional to 569,765.35, 786,518.29 and 355,011.53

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Solution

The fourth proportional to 569,765.35, 786,518.29 and 355,011.53 is: 490,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,765.35 : 786,518.29 = 355,011.53 : x
  2. Step 2: Convert to fraction form
    569,765.35/786,518.29 = 355,011.53/x
  3. Step 3: Cross multiply
    569,765.35x = 786,518.29 × 355,011.53
  4. Step 4: Simplify right side
    569,765.35x = 279,223,058,017.06
  5. Step 5: Solve for x
    x = 279,223,058,017.06/569,765.35
  6. Step 6: Final answer
    x = 490,066.76

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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.