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Finding the Fourth Proportional to 282,666.41, 390,082.13 and 153,604.92

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Solution

The fourth proportional to 282,666.41, 390,082.13 and 153,604.92 is: 211,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,666.41 : 390,082.13 = 153,604.92 : x
  2. Step 2: Convert to fraction form
    282,666.41/390,082.13 = 153,604.92/x
  3. Step 3: Cross multiply
    282,666.41x = 390,082.13 × 153,604.92
  4. Step 4: Simplify right side
    282,666.41x = 59,918,533,604.06
  5. Step 5: Solve for x
    x = 59,918,533,604.06/282,666.41
  6. Step 6: Final answer
    x = 211,976.14

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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.