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Finding the Fourth Proportional to 653,236,547.40, 979,854,821.10 and 411,371,843.40

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Solution

The fourth proportional to 653,236,547.40, 979,854,821.10 and 411,371,843.40 is: 617,057,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,236,547.40 : 979,854,821.10 = 411,371,843.40 : x
  2. Step 2: Convert to fraction form
    653,236,547.40/979,854,821.10 = 411,371,843.40/x
  3. Step 3: Cross multiply
    653,236,547.40x = 979,854,821.10 × 411,371,843.40
  4. Step 4: Simplify right side
    653,236,547.40x = 403,084,684,020,284,224
  5. Step 5: Solve for x
    x = 403,084,684,020,284,224/653,236,547.40
  6. Step 6: Final answer
    x = 617,057,765.10

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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.