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Finding the Fourth Proportional to 615,168,053.40, 922,752,080.10 and 323,636,482.20

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Solution

The fourth proportional to 615,168,053.40, 922,752,080.10 and 323,636,482.20 is: 485,454,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,168,053.40 : 922,752,080.10 = 323,636,482.20 : x
  2. Step 2: Convert to fraction form
    615,168,053.40/922,752,080.10 = 323,636,482.20/x
  3. Step 3: Cross multiply
    615,168,053.40x = 922,752,080.10 × 323,636,482.20
  4. Step 4: Simplify right side
    615,168,053.40x = 298,636,237,146,296,640
  5. Step 5: Solve for x
    x = 298,636,237,146,296,640/615,168,053.40
  6. Step 6: Final answer
    x = 485,454,723.30

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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.