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Finding the Fourth Proportional to 495,506.01, 683,807.27 and 280,690.68

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Solution

The fourth proportional to 495,506.01, 683,807.27 and 280,690.68 is: 387,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,506.01 : 683,807.27 = 280,690.68 : x
  2. Step 2: Convert to fraction form
    495,506.01/683,807.27 = 280,690.68/x
  3. Step 3: Cross multiply
    495,506.01x = 683,807.27 × 280,690.68
  4. Step 4: Simplify right side
    495,506.01x = 191,938,326,201.79
  5. Step 5: Solve for x
    x = 191,938,326,201.79/495,506.01
  6. Step 6: Final answer
    x = 387,358.22

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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.