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Finding the Fourth Proportional to 310,993.53, 429,143.18 and 175,038.27

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Solution

The fourth proportional to 310,993.53, 429,143.18 and 175,038.27 is: 241,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,993.53 : 429,143.18 = 175,038.27 : x
  2. Step 2: Convert to fraction form
    310,993.53/429,143.18 = 175,038.27/x
  3. Step 3: Cross multiply
    310,993.53x = 429,143.18 × 175,038.27
  4. Step 4: Simplify right side
    310,993.53x = 75,116,478,934.31
  5. Step 5: Solve for x
    x = 75,116,478,934.31/310,993.53
  6. Step 6: Final answer
    x = 241,537.11

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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.