Home / 756,880.15-1,135,320.21-519,503.17

Finding the Fourth Proportional to 756,880.15, 1,135,320.21 and 519,503.17

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Solution

The fourth proportional to 756,880.15, 1,135,320.21 and 519,503.17 is: 779,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,880.15 : 1,135,320.21 = 519,503.17 : x
  2. Step 2: Convert to fraction form
    756,880.15/1,135,320.21 = 519,503.17/x
  3. Step 3: Cross multiply
    756,880.15x = 1,135,320.21 × 519,503.17
  4. Step 4: Simplify right side
    756,880.15x = 589,802,448,060.07
  5. Step 5: Solve for x
    x = 589,802,448,060.07/756,880.15
  6. Step 6: Final answer
    x = 779,254.74

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Double scale
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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.