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Finding the Fourth Proportional to 319,693.53, 441,145.64 and 176,444.34

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Solution

The fourth proportional to 319,693.53, 441,145.64 and 176,444.34 is: 243,475.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,693.53 : 441,145.64 = 176,444.34 : x
  2. Step 2: Convert to fraction form
    319,693.53/441,145.64 = 176,444.34/x
  3. Step 3: Cross multiply
    319,693.53x = 441,145.64 × 176,444.34
  4. Step 4: Simplify right side
    319,693.53x = 77,837,650,411.46
  5. Step 5: Solve for x
    x = 77,837,650,411.46/319,693.53
  6. Step 6: Final answer
    x = 243,475.84

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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.