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Finding the Fourth Proportional to 696,085.80, 972,420.60 and 696,085.80

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Solution

The fourth proportional to 696,085.80, 972,420.60 and 696,085.80 is: 972,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,085.80 : 972,420.60 = 696,085.80 : x
  2. Step 2: Convert to fraction form
    696,085.80/972,420.60 = 696,085.80/x
  3. Step 3: Cross multiply
    696,085.80x = 972,420.60 × 696,085.80
  4. Step 4: Simplify right side
    696,085.80x = 676,888,171,287.48
  5. Step 5: Solve for x
    x = 676,888,171,287.48/696,085.80
  6. Step 6: Final answer
    x = 972,420.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.