Home / 570,115.52-786,748.32-315,466.88

Finding the Fourth Proportional to 570,115.52, 786,748.32 and 315,466.88

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Solution

The fourth proportional to 570,115.52, 786,748.32 and 315,466.88 is: 435,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,115.52 : 786,748.32 = 315,466.88 : x
  2. Step 2: Convert to fraction form
    570,115.52/786,748.32 = 315,466.88/x
  3. Step 3: Cross multiply
    570,115.52x = 786,748.32 × 315,466.88
  4. Step 4: Simplify right side
    570,115.52x = 248,193,037,855.64
  5. Step 5: Solve for x
    x = 248,193,037,855.64/570,115.52
  6. Step 6: Final answer
    x = 435,338.15

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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.