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Finding the Third Proportional to 290,234,068 and 631,484,528

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Solution

The third proportional to 290,234,068 and 631,484,528 is: 1,373,969,333.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,234,068 : 631,484,528 = 631,484,528 : x
  2. Step 2: Convert to fraction form
    290,234,068/631,484,528 = 631,484,528/x
  3. Step 3: Cross multiply
    290,234,068x = 631,484,528 × 631,484,528
  4. Step 4: Simplify right side
    290,234,068x = 398,772,709,103,382,784
  5. Step 5: Solve for x
    x = 398,772,709,103,382,784/290,234,068
  6. Step 6: Final answer
    x = 1,373,969,333.96

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.