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Finding the Fourth Proportional to 562,219.28, 775,880.88 and 307,570.47

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Solution

The fourth proportional to 562,219.28, 775,880.88 and 307,570.47 is: 424,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,219.28 : 775,880.88 = 307,570.47 : x
  2. Step 2: Convert to fraction form
    562,219.28/775,880.88 = 307,570.47/x
  3. Step 3: Cross multiply
    562,219.28x = 775,880.88 × 307,570.47
  4. Step 4: Simplify right side
    562,219.28x = 238,638,042,862.67
  5. Step 5: Solve for x
    x = 238,638,042,862.67/562,219.28
  6. Step 6: Final answer
    x = 424,457.24

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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.