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Finding the Fourth Proportional to 641,718, 883,592.70 and 569,973.42

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Solution

The fourth proportional to 641,718, 883,592.70 and 569,973.42 is: 784,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,718 : 883,592.70 = 569,973.42 : x
  2. Step 2: Convert to fraction form
    641,718/883,592.70 = 569,973.42/x
  3. Step 3: Cross multiply
    641,718x = 883,592.70 × 569,973.42
  4. Step 4: Simplify right side
    641,718x = 503,624,353,106.03
  5. Step 5: Solve for x
    x = 503,624,353,106.03/641,718
  6. Step 6: Final answer
    x = 784,806.34

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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.