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Finding the Fourth Proportional to 679,759.28, 936,683.88 and 525,862.48

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Solution

The fourth proportional to 679,759.28, 936,683.88 and 525,862.48 is: 724,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,759.28 : 936,683.88 = 525,862.48 : x
  2. Step 2: Convert to fraction form
    679,759.28/936,683.88 = 525,862.48/x
  3. Step 3: Cross multiply
    679,759.28x = 936,683.88 × 525,862.48
  4. Step 4: Simplify right side
    679,759.28x = 492,566,908,112.82
  5. Step 5: Solve for x
    x = 492,566,908,112.82/679,759.28
  6. Step 6: Final answer
    x = 724,619.62

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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.