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Finding the Fourth Proportional to 662,593,990.38, 915,253,038.84 and 495,039,041.16

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Solution

The fourth proportional to 662,593,990.38, 915,253,038.84 and 495,039,041.16 is: 683,806,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,593,990.38 : 915,253,038.84 = 495,039,041.16 : x
  2. Step 2: Convert to fraction form
    662,593,990.38/915,253,038.84 = 495,039,041.16/x
  3. Step 3: Cross multiply
    662,593,990.38x = 915,253,038.84 × 495,039,041.16
  4. Step 4: Simplify right side
    662,593,990.38x = 453,085,986,766,129,856
  5. Step 5: Solve for x
    x = 453,085,986,766,129,856/662,593,990.38
  6. Step 6: Final answer
    x = 683,806,363.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.