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Finding the Fourth Proportional to 570,832.50, 787,748.85 and 316,200.18

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Solution

The fourth proportional to 570,832.50, 787,748.85 and 316,200.18 is: 436,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,832.50 : 787,748.85 = 316,200.18 : x
  2. Step 2: Convert to fraction form
    570,832.50/787,748.85 = 316,200.18/x
  3. Step 3: Cross multiply
    570,832.50x = 787,748.85 × 316,200.18
  4. Step 4: Simplify right side
    570,832.50x = 249,086,328,164.79
  5. Step 5: Solve for x
    x = 249,086,328,164.79/570,832.50
  6. Step 6: Final answer
    x = 436,356.25

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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.