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Finding the Fourth Proportional to 570,522.14, 787,373.36 and 315,873.32

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Solution

The fourth proportional to 570,522.14, 787,373.36 and 315,873.32 is: 435,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,522.14 : 787,373.36 = 315,873.32 : x
  2. Step 2: Convert to fraction form
    570,522.14/787,373.36 = 315,873.32/x
  3. Step 3: Cross multiply
    570,522.14x = 787,373.36 × 315,873.32
  4. Step 4: Simplify right side
    570,522.14x = 248,710,240,060.87
  5. Step 5: Solve for x
    x = 248,710,240,060.87/570,522.14
  6. Step 6: Final answer
    x = 435,934.43

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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.