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Finding the Fourth Proportional to 495,527.72, 683,710.62 and 291,587.54

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Solution

The fourth proportional to 495,527.72, 683,710.62 and 291,587.54 is: 402,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,527.72 : 683,710.62 = 291,587.54 : x
  2. Step 2: Convert to fraction form
    495,527.72/683,710.62 = 291,587.54/x
  3. Step 3: Cross multiply
    495,527.72x = 683,710.62 × 291,587.54
  4. Step 4: Simplify right side
    495,527.72x = 199,361,494,339.12
  5. Step 5: Solve for x
    x = 199,361,494,339.12/495,527.72
  6. Step 6: Final answer
    x = 402,321.58

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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.