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Finding the Fourth Proportional to 693,259.20, 972,662.40 and 693,259.20

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Solution

The fourth proportional to 693,259.20, 972,662.40 and 693,259.20 is: 972,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,259.20 : 972,662.40 = 693,259.20 : x
  2. Step 2: Convert to fraction form
    693,259.20/972,662.40 = 693,259.20/x
  3. Step 3: Cross multiply
    693,259.20x = 972,662.40 × 693,259.20
  4. Step 4: Simplify right side
    693,259.20x = 674,307,157,294.08
  5. Step 5: Solve for x
    x = 674,307,157,294.08/693,259.20
  6. Step 6: Final answer
    x = 972,662.40

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Half scale
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Double scale
Find fourth proportional to 693,260.20, 972,663.80 and 693,260.20
Similar ratio
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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.