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Finding the Fourth Proportional to 885,808,709.80, 1,328,713,064.70 and 541,434,941.80

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Solution

The fourth proportional to 885,808,709.80, 1,328,713,064.70 and 541,434,941.80 is: 812,152,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,808,709.80 : 1,328,713,064.70 = 541,434,941.80 : x
  2. Step 2: Convert to fraction form
    885,808,709.80/1,328,713,064.70 = 541,434,941.80/x
  3. Step 3: Cross multiply
    885,808,709.80x = 1,328,713,064.70 × 541,434,941.80
  4. Step 4: Simplify right side
    885,808,709.80x = 719,411,680,854,744,064
  5. Step 5: Solve for x
    x = 719,411,680,854,744,064/885,808,709.80
  6. Step 6: Final answer
    x = 812,152,412.70

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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.