Home / 395,224.96-592,931.76-128,985.98

Finding the Fourth Proportional to 395,224.96, 592,931.76 and 128,985.98

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Solution

The fourth proportional to 395,224.96, 592,931.76 and 128,985.98 is: 193,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,224.96 : 592,931.76 = 128,985.98 : x
  2. Step 2: Convert to fraction form
    395,224.96/592,931.76 = 128,985.98/x
  3. Step 3: Cross multiply
    395,224.96x = 592,931.76 × 128,985.98
  4. Step 4: Simplify right side
    395,224.96x = 76,479,884,136.72
  5. Step 5: Solve for x
    x = 76,479,884,136.72/395,224.96
  6. Step 6: Final answer
    x = 193,509.75

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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.