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Finding the Fourth Proportional to 585,123.70, 807,466.08 and 316,851.70

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Solution

The fourth proportional to 585,123.70, 807,466.08 and 316,851.70 is: 437,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,123.70 : 807,466.08 = 316,851.70 : x
  2. Step 2: Convert to fraction form
    585,123.70/807,466.08 = 316,851.70/x
  3. Step 3: Cross multiply
    585,123.70x = 807,466.08 × 316,851.70
  4. Step 4: Simplify right side
    585,123.70x = 255,847,000,140.34
  5. Step 5: Solve for x
    x = 255,847,000,140.34/585,123.70
  6. Step 6: Final answer
    x = 437,252.84

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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.