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Finding the Fourth Proportional to 604,260,039.60, 906,390,059.40 and 317,008,378.80

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Solution

The fourth proportional to 604,260,039.60, 906,390,059.40 and 317,008,378.80 is: 475,512,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,260,039.60 : 906,390,059.40 = 317,008,378.80 : x
  2. Step 2: Convert to fraction form
    604,260,039.60/906,390,059.40 = 317,008,378.80/x
  3. Step 3: Cross multiply
    604,260,039.60x = 906,390,059.40 × 317,008,378.80
  4. Step 4: Simplify right side
    604,260,039.60x = 287,333,243,290,829,696
  5. Step 5: Solve for x
    x = 287,333,243,290,829,696/604,260,039.60
  6. Step 6: Final answer
    x = 475,512,568.20

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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.