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Finding the Fourth Proportional to 282,293.70, 389,565.69 and 153,232.10

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Solution

The fourth proportional to 282,293.70, 389,565.69 and 153,232.10 is: 211,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,293.70 : 389,565.69 = 153,232.10 : x
  2. Step 2: Convert to fraction form
    282,293.70/389,565.69 = 153,232.10/x
  3. Step 3: Cross multiply
    282,293.70x = 389,565.69 × 153,232.10
  4. Step 4: Simplify right side
    282,293.70x = 59,693,966,818.82
  5. Step 5: Solve for x
    x = 59,693,966,818.82/282,293.70
  6. Step 6: Final answer
    x = 211,460.50

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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.