Home / 639,069,641.40-958,604,462.10-275,563,997.40

Finding the Fourth Proportional to 639,069,641.40, 958,604,462.10 and 275,563,997.40

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Solution

The fourth proportional to 639,069,641.40, 958,604,462.10 and 275,563,997.40 is: 413,345,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,069,641.40 : 958,604,462.10 = 275,563,997.40 : x
  2. Step 2: Convert to fraction form
    639,069,641.40/958,604,462.10 = 275,563,997.40/x
  3. Step 3: Cross multiply
    639,069,641.40x = 958,604,462.10 × 275,563,997.40
  4. Step 4: Simplify right side
    639,069,641.40x = 264,156,877,501,752,768
  5. Step 5: Solve for x
    x = 264,156,877,501,752,768/639,069,641.40
  6. Step 6: Final answer
    x = 413,345,996.10

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Double scale
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Similar ratio
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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.