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Finding the Fourth Proportional to 562,566.72, 776,340.76 and 307,915.68

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Solution

The fourth proportional to 562,566.72, 776,340.76 and 307,915.68 is: 424,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,566.72 : 776,340.76 = 307,915.68 : x
  2. Step 2: Convert to fraction form
    562,566.72/776,340.76 = 307,915.68/x
  3. Step 3: Cross multiply
    562,566.72x = 776,340.76 × 307,915.68
  4. Step 4: Simplify right side
    562,566.72x = 239,047,493,027.12
  5. Step 5: Solve for x
    x = 239,047,493,027.12/562,566.72
  6. Step 6: Final answer
    x = 424,922.92

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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.