Home / 825,984,028.60-1,238,976,042.90-578,744,553.40

Finding the Fourth Proportional to 825,984,028.60, 1,238,976,042.90 and 578,744,553.40

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Solution

The fourth proportional to 825,984,028.60, 1,238,976,042.90 and 578,744,553.40 is: 868,116,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,984,028.60 : 1,238,976,042.90 = 578,744,553.40 : x
  2. Step 2: Convert to fraction form
    825,984,028.60/1,238,976,042.90 = 578,744,553.40/x
  3. Step 3: Cross multiply
    825,984,028.60x = 1,238,976,042.90 × 578,744,553.40
  4. Step 4: Simplify right side
    825,984,028.60x = 717,050,636,621,459,712
  5. Step 5: Solve for x
    x = 717,050,636,621,459,712/825,984,028.60
  6. Step 6: Final answer
    x = 868,116,830.10

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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.