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Finding the Fourth Proportional to 716,000.28, 987,834.48 and 443,970.24

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Solution

The fourth proportional to 716,000.28, 987,834.48 and 443,970.24 is: 612,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,000.28 : 987,834.48 = 443,970.24 : x
  2. Step 2: Convert to fraction form
    716,000.28/987,834.48 = 443,970.24/x
  3. Step 3: Cross multiply
    716,000.28x = 987,834.48 × 443,970.24
  4. Step 4: Simplify right side
    716,000.28x = 438,569,111,165.88
  5. Step 5: Solve for x
    x = 438,569,111,165.88/716,000.28
  6. Step 6: Final answer
    x = 612,526.45

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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.