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Finding the Fourth Proportional to 562,586.85, 776,389.59 and 307,938.24

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Solution

The fourth proportional to 562,586.85, 776,389.59 and 307,938.24 is: 424,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,586.85 : 776,389.59 = 307,938.24 : x
  2. Step 2: Convert to fraction form
    562,586.85/776,389.59 = 307,938.24/x
  3. Step 3: Cross multiply
    562,586.85x = 776,389.59 × 307,938.24
  4. Step 4: Simplify right side
    562,586.85x = 239,080,043,898.92
  5. Step 5: Solve for x
    x = 239,080,043,898.92/562,586.85
  6. Step 6: Final answer
    x = 424,965.57

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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.