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Finding the Fourth Proportional to 285,332.84, 393,750.38 and 156,265.64

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Solution

The fourth proportional to 285,332.84, 393,750.38 and 156,265.64 is: 215,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,332.84 : 393,750.38 = 156,265.64 : x
  2. Step 2: Convert to fraction form
    285,332.84/393,750.38 = 156,265.64/x
  3. Step 3: Cross multiply
    285,332.84x = 393,750.38 × 156,265.64
  4. Step 4: Simplify right side
    285,332.84x = 61,529,655,130.94
  5. Step 5: Solve for x
    x = 61,529,655,130.94/285,332.84
  6. Step 6: Final answer
    x = 215,641.69

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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.