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Finding the Fourth Proportional to 907,281,311.70, 1,360,921,967.55 and 907,281,311.70

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Solution

The fourth proportional to 907,281,311.70, 1,360,921,967.55 and 907,281,311.70 is: 1,360,921,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,281,311.70 : 1,360,921,967.55 = 907,281,311.70 : x
  2. Step 2: Convert to fraction form
    907,281,311.70/1,360,921,967.55 = 907,281,311.70/x
  3. Step 3: Cross multiply
    907,281,311.70x = 1,360,921,967.55 × 907,281,311.70
  4. Step 4: Simplify right side
    907,281,311.70x = 1,234,739,067,840,108,800
  5. Step 5: Solve for x
    x = 1,234,739,067,840,108,800/907,281,311.70
  6. Step 6: Final answer
    x = 1,360,921,967.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.