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Finding the Fourth Proportional to 651,710.76, 898,418.43 and 457,527.21

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Solution

The fourth proportional to 651,710.76, 898,418.43 and 457,527.21 is: 630,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,710.76 : 898,418.43 = 457,527.21 : x
  2. Step 2: Convert to fraction form
    651,710.76/898,418.43 = 457,527.21/x
  3. Step 3: Cross multiply
    651,710.76x = 898,418.43 × 457,527.21
  4. Step 4: Simplify right side
    651,710.76x = 411,050,877,690.48
  5. Step 5: Solve for x
    x = 411,050,877,690.48/651,710.76
  6. Step 6: Final answer
    x = 630,725.93

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Double scale
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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.