Home / 839,940,681.70-1,259,911,022.55-686,885,673.70

Finding the Fourth Proportional to 839,940,681.70, 1,259,911,022.55 and 686,885,673.70

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Solution

The fourth proportional to 839,940,681.70, 1,259,911,022.55 and 686,885,673.70 is: 1,030,328,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,940,681.70 : 1,259,911,022.55 = 686,885,673.70 : x
  2. Step 2: Convert to fraction form
    839,940,681.70/1,259,911,022.55 = 686,885,673.70/x
  3. Step 3: Cross multiply
    839,940,681.70x = 1,259,911,022.55 × 686,885,673.70
  4. Step 4: Simplify right side
    839,940,681.70x = 865,414,831,526,312,704
  5. Step 5: Solve for x
    x = 865,414,831,526,312,704/839,940,681.70
  6. Step 6: Final answer
    x = 1,030,328,510.55

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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.