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Finding the Fourth Proportional to 712,164.28, 983,452.90 and 457,957.08

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Solution

The fourth proportional to 712,164.28, 983,452.90 and 457,957.08 is: 632,409.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,164.28 : 983,452.90 = 457,957.08 : x
  2. Step 2: Convert to fraction form
    712,164.28/983,452.90 = 457,957.08/x
  3. Step 3: Cross multiply
    712,164.28x = 983,452.90 × 457,957.08
  4. Step 4: Simplify right side
    712,164.28x = 450,379,218,401.53
  5. Step 5: Solve for x
    x = 450,379,218,401.53/712,164.28
  6. Step 6: Final answer
    x = 632,409.17

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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.