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Finding the Fourth Proportional to 570,994.75, 787,998.59 and 316,345.94

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Solution

The fourth proportional to 570,994.75, 787,998.59 and 316,345.94 is: 436,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,994.75 : 787,998.59 = 316,345.94 : x
  2. Step 2: Convert to fraction form
    570,994.75/787,998.59 = 316,345.94/x
  3. Step 3: Cross multiply
    570,994.75x = 787,998.59 × 316,345.94
  4. Step 4: Simplify right side
    570,994.75x = 249,280,154,672.23
  5. Step 5: Solve for x
    x = 249,280,154,672.23/570,994.75
  6. Step 6: Final answer
    x = 436,571.71

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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.