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Finding the Fourth Proportional to 312,270.93, 430,934.94 and 169,030.92

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Solution

The fourth proportional to 312,270.93, 430,934.94 and 169,030.92 is: 233,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,270.93 : 430,934.94 = 169,030.92 : x
  2. Step 2: Convert to fraction form
    312,270.93/430,934.94 = 169,030.92/x
  3. Step 3: Cross multiply
    312,270.93x = 430,934.94 × 169,030.92
  4. Step 4: Simplify right side
    312,270.93x = 72,841,329,368.34
  5. Step 5: Solve for x
    x = 72,841,329,368.34/312,270.93
  6. Step 6: Final answer
    x = 233,263.24

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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.