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Finding the Fourth Proportional to 695,216.70, 975,402.90 and 695,216.70

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Solution

The fourth proportional to 695,216.70, 975,402.90 and 695,216.70 is: 975,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,216.70 : 975,402.90 = 695,216.70 : x
  2. Step 2: Convert to fraction form
    695,216.70/975,402.90 = 695,216.70/x
  3. Step 3: Cross multiply
    695,216.70x = 975,402.90 × 695,216.70
  4. Step 4: Simplify right side
    695,216.70x = 678,116,385,308.43
  5. Step 5: Solve for x
    x = 678,116,385,308.43/695,216.70
  6. Step 6: Final answer
    x = 975,402.90

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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.