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Finding the Fourth Proportional to 438,572.78, 605,232.28 and 237,368.78

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Solution

The fourth proportional to 438,572.78, 605,232.28 and 237,368.78 is: 327,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,572.78 : 605,232.28 = 237,368.78 : x
  2. Step 2: Convert to fraction form
    438,572.78/605,232.28 = 237,368.78/x
  3. Step 3: Cross multiply
    438,572.78x = 605,232.28 × 237,368.78
  4. Step 4: Simplify right side
    438,572.78x = 143,663,249,730.01
  5. Step 5: Solve for x
    x = 143,663,249,730.01/438,572.78
  6. Step 6: Final answer
    x = 327,569.92

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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.