Home / 631,784.90-947,216.55-257,615.30

Finding the Fourth Proportional to 631,784.90, 947,216.55 and 257,615.30

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Solution

The fourth proportional to 631,784.90, 947,216.55 and 257,615.30 is: 386,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,784.90 : 947,216.55 = 257,615.30 : x
  2. Step 2: Convert to fraction form
    631,784.90/947,216.55 = 257,615.30/x
  3. Step 3: Cross multiply
    631,784.90x = 947,216.55 × 257,615.30
  4. Step 4: Simplify right side
    631,784.90x = 244,017,475,693.22
  5. Step 5: Solve for x
    x = 244,017,475,693.22/631,784.90
  6. Step 6: Final answer
    x = 386,235.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.