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Finding the Fourth Proportional to 417,312,694.40, 625,969,041.60 and 144,592,822.40

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Solution

The fourth proportional to 417,312,694.40, 625,969,041.60 and 144,592,822.40 is: 216,889,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,312,694.40 : 625,969,041.60 = 144,592,822.40 : x
  2. Step 2: Convert to fraction form
    417,312,694.40/625,969,041.60 = 144,592,822.40/x
  3. Step 3: Cross multiply
    417,312,694.40x = 625,969,041.60 × 144,592,822.40
  4. Step 4: Simplify right side
    417,312,694.40x = 90,510,630,459,967,024
  5. Step 5: Solve for x
    x = 90,510,630,459,967,024/417,312,694.40
  6. Step 6: Final answer
    x = 216,889,233.60

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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.