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Finding the Fourth Proportional to 562,440.12, 776,165.94 and 307,789.08

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Solution

The fourth proportional to 562,440.12, 776,165.94 and 307,789.08 is: 424,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,440.12 : 776,165.94 = 307,789.08 : x
  2. Step 2: Convert to fraction form
    562,440.12/776,165.94 = 307,789.08/x
  3. Step 3: Cross multiply
    562,440.12x = 776,165.94 × 307,789.08
  4. Step 4: Simplify right side
    562,440.12x = 238,895,400,599.94
  5. Step 5: Solve for x
    x = 238,895,400,599.94/562,440.12
  6. Step 6: Final answer
    x = 424,748.15

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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.