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Finding the Fourth Proportional to 571,957.70, 789,275.20 and 313,828.22

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Solution

The fourth proportional to 571,957.70, 789,275.20 and 313,828.22 is: 433,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,957.70 : 789,275.20 = 313,828.22 : x
  2. Step 2: Convert to fraction form
    571,957.70/789,275.20 = 313,828.22/x
  3. Step 3: Cross multiply
    571,957.70x = 789,275.20 × 313,828.22
  4. Step 4: Simplify right side
    571,957.70x = 247,696,831,106.14
  5. Step 5: Solve for x
    x = 247,696,831,106.14/571,957.70
  6. Step 6: Final answer
    x = 433,068.44

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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.