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Finding the Fourth Proportional to 495,054.87, 683,058.62 and 280,194.93

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Solution

The fourth proportional to 495,054.87, 683,058.62 and 280,194.93 is: 386,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,054.87 : 683,058.62 = 280,194.93 : x
  2. Step 2: Convert to fraction form
    495,054.87/683,058.62 = 280,194.93/x
  3. Step 3: Cross multiply
    495,054.87x = 683,058.62 × 280,194.93
  4. Step 4: Simplify right side
    495,054.87x = 191,389,562,216.80
  5. Step 5: Solve for x
    x = 191,389,562,216.80/495,054.87
  6. Step 6: Final answer
    x = 386,602.73

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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.