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Finding the Fourth Proportional to 282,713.96, 390,148.29 and 153,652.46

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Solution

The fourth proportional to 282,713.96, 390,148.29 and 153,652.46 is: 212,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,713.96 : 390,148.29 = 153,652.46 : x
  2. Step 2: Convert to fraction form
    282,713.96/390,148.29 = 153,652.46/x
  3. Step 3: Cross multiply
    282,713.96x = 390,148.29 × 153,652.46
  4. Step 4: Simplify right side
    282,713.96x = 59,947,242,572.55
  5. Step 5: Solve for x
    x = 59,947,242,572.55/282,713.96
  6. Step 6: Final answer
    x = 212,042.03

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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.