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Finding the Fourth Proportional to 570,873.60, 786,207.60 and 558,475.74

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Solution

The fourth proportional to 570,873.60, 786,207.60 and 558,475.74 is: 769,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,873.60 : 786,207.60 = 558,475.74 : x
  2. Step 2: Convert to fraction form
    570,873.60/786,207.60 = 558,475.74/x
  3. Step 3: Cross multiply
    570,873.60x = 786,207.60 × 558,475.74
  4. Step 4: Simplify right side
    570,873.60x = 439,077,871,203.62
  5. Step 5: Solve for x
    x = 439,077,871,203.62/570,873.60
  6. Step 6: Final answer
    x = 769,133.26

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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.