Home / 447,931.10-617,927.18-286,656.86

Finding the Fourth Proportional to 447,931.10, 617,927.18 and 286,656.86

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Solution

The fourth proportional to 447,931.10, 617,927.18 and 286,656.86 is: 395,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,931.10 : 617,927.18 = 286,656.86 : x
  2. Step 2: Convert to fraction form
    447,931.10/617,927.18 = 286,656.86/x
  3. Step 3: Cross multiply
    447,931.10x = 617,927.18 × 286,656.86
  4. Step 4: Simplify right side
    447,931.10x = 177,133,065,127.46
  5. Step 5: Solve for x
    x = 177,133,065,127.46/447,931.10
  6. Step 6: Final answer
    x = 395,447.12

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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.