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Finding the Fourth Proportional to 631,152,005.60, 946,728,008.40 and 631,152,005.60

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Solution

The fourth proportional to 631,152,005.60, 946,728,008.40 and 631,152,005.60 is: 946,728,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,152,005.60 : 946,728,008.40 = 631,152,005.60 : x
  2. Step 2: Convert to fraction form
    631,152,005.60/946,728,008.40 = 631,152,005.60/x
  3. Step 3: Cross multiply
    631,152,005.60x = 946,728,008.40 × 631,152,005.60
  4. Step 4: Simplify right side
    631,152,005.60x = 597,529,281,259,353,600
  5. Step 5: Solve for x
    x = 597,529,281,259,353,600/631,152,005.60
  6. Step 6: Final answer
    x = 946,728,008.40

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Similar ratio
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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.