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Finding the Fourth Proportional to 585,087.24, 807,420.40 and 316,815.24

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Solution

The fourth proportional to 585,087.24, 807,420.40 and 316,815.24 is: 437,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,087.24 : 807,420.40 = 316,815.24 : x
  2. Step 2: Convert to fraction form
    585,087.24/807,420.40 = 316,815.24/x
  3. Step 3: Cross multiply
    585,087.24x = 807,420.40 × 316,815.24
  4. Step 4: Simplify right side
    585,087.24x = 255,803,087,806.90
  5. Step 5: Solve for x
    x = 255,803,087,806.90/585,087.24
  6. Step 6: Final answer
    x = 437,205.04

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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.