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Finding the Fourth Proportional to 570,216.32, 786,923.24 and 315,567.60

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Solution

The fourth proportional to 570,216.32, 786,923.24 and 315,567.60 is: 435,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,216.32 : 786,923.24 = 315,567.60 : x
  2. Step 2: Convert to fraction form
    570,216.32/786,923.24 = 315,567.60/x
  3. Step 3: Cross multiply
    570,216.32x = 786,923.24 × 315,567.60
  4. Step 4: Simplify right side
    570,216.32x = 248,327,478,231.02
  5. Step 5: Solve for x
    x = 248,327,478,231.02/570,216.32
  6. Step 6: Final answer
    x = 435,496.97

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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.