Home / 1,305,280,654.30-1,957,920,981.45-443,637,646.30

Finding the Fourth Proportional to 1,305,280,654.30, 1,957,920,981.45 and 443,637,646.30

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Solution

The fourth proportional to 1,305,280,654.30, 1,957,920,981.45 and 443,637,646.30 is: 665,456,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,654.30 : 1,957,920,981.45 = 443,637,646.30 : x
  2. Step 2: Convert to fraction form
    1,305,280,654.30/1,957,920,981.45 = 443,637,646.30/x
  3. Step 3: Cross multiply
    1,305,280,654.30x = 1,957,920,981.45 × 443,637,646.30
  4. Step 4: Simplify right side
    1,305,280,654.30x = 868,607,455,851,864,064
  5. Step 5: Solve for x
    x = 868,607,455,851,864,064/1,305,280,654.30
  6. Step 6: Final answer
    x = 665,456,469.45

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Double scale
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1.5x scale

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.