Home / 839,213,200.80-1,258,819,801.20-655,547,191.20

Finding the Fourth Proportional to 839,213,200.80, 1,258,819,801.20 and 655,547,191.20

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Solution

The fourth proportional to 839,213,200.80, 1,258,819,801.20 and 655,547,191.20 is: 983,320,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,213,200.80 : 1,258,819,801.20 = 655,547,191.20 : x
  2. Step 2: Convert to fraction form
    839,213,200.80/1,258,819,801.20 = 655,547,191.20/x
  3. Step 3: Cross multiply
    839,213,200.80x = 1,258,819,801.20 × 655,547,191.20
  4. Step 4: Simplify right side
    839,213,200.80x = 825,215,784,903,602,432
  5. Step 5: Solve for x
    x = 825,215,784,903,602,432/839,213,200.80
  6. Step 6: Final answer
    x = 983,320,786.80

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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.