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Finding the Fourth Proportional to 438,547.86, 605,196.12 and 237,343.86

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Solution

The fourth proportional to 438,547.86, 605,196.12 and 237,343.86 is: 327,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,547.86 : 605,196.12 = 237,343.86 : x
  2. Step 2: Convert to fraction form
    438,547.86/605,196.12 = 237,343.86/x
  3. Step 3: Cross multiply
    438,547.86x = 605,196.12 × 237,343.86
  4. Step 4: Simplify right side
    438,547.86x = 143,639,583,177.82
  5. Step 5: Solve for x
    x = 143,639,583,177.82/438,547.86
  6. Step 6: Final answer
    x = 327,534.57

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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.