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Finding the Fourth Proportional to 885,736,583.80, 1,328,604,875.70 and 516,892,910.20

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Solution

The fourth proportional to 885,736,583.80, 1,328,604,875.70 and 516,892,910.20 is: 775,339,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,583.80 : 1,328,604,875.70 = 516,892,910.20 : x
  2. Step 2: Convert to fraction form
    885,736,583.80/1,328,604,875.70 = 516,892,910.20/x
  3. Step 3: Cross multiply
    885,736,583.80x = 1,328,604,875.70 × 516,892,910.20
  4. Step 4: Simplify right side
    885,736,583.80x = 686,746,440,706,482,304
  5. Step 5: Solve for x
    x = 686,746,440,706,482,304/885,736,583.80
  6. Step 6: Final answer
    x = 775,339,365.30

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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.