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Finding the Fourth Proportional to 585,066.45, 807,151.27 and 355,586.76

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Solution

The fourth proportional to 585,066.45, 807,151.27 and 355,586.76 is: 490,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,066.45 : 807,151.27 = 355,586.76 : x
  2. Step 2: Convert to fraction form
    585,066.45/807,151.27 = 355,586.76/x
  3. Step 3: Cross multiply
    585,066.45x = 807,151.27 × 355,586.76
  4. Step 4: Simplify right side
    585,066.45x = 287,012,304,929.19
  5. Step 5: Solve for x
    x = 287,012,304,929.19/585,066.45
  6. Step 6: Final answer
    x = 490,563.60

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Double scale
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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.