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Finding the Fourth Proportional to 677,127.62, 934,502.94 and 386,782.57

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Solution

The fourth proportional to 677,127.62, 934,502.94 and 386,782.57 is: 533,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,127.62 : 934,502.94 = 386,782.57 : x
  2. Step 2: Convert to fraction form
    677,127.62/934,502.94 = 386,782.57/x
  3. Step 3: Cross multiply
    677,127.62x = 934,502.94 × 386,782.57
  4. Step 4: Simplify right side
    677,127.62x = 361,449,448,805.76
  5. Step 5: Solve for x
    x = 361,449,448,805.76/677,127.62
  6. Step 6: Final answer
    x = 533,798.12

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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.