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Finding the Fourth Proportional to 570,625.84, 787,463.48 and 315,976.96

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Solution

The fourth proportional to 570,625.84, 787,463.48 and 315,976.96 is: 436,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,625.84 : 787,463.48 = 315,976.96 : x
  2. Step 2: Convert to fraction form
    570,625.84/787,463.48 = 315,976.96/x
  3. Step 3: Cross multiply
    570,625.84x = 787,463.48 × 315,976.96
  4. Step 4: Simplify right side
    570,625.84x = 248,820,316,521.42
  5. Step 5: Solve for x
    x = 248,820,316,521.42/570,625.84
  6. Step 6: Final answer
    x = 436,048.11

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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.