Home / 388,946.57-536,746.28-210,098.57

Finding the Fourth Proportional to 388,946.57, 536,746.28 and 210,098.57

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Solution

The fourth proportional to 388,946.57, 536,746.28 and 210,098.57 is: 289,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,946.57 : 536,746.28 = 210,098.57 : x
  2. Step 2: Convert to fraction form
    388,946.57/536,746.28 = 210,098.57/x
  3. Step 3: Cross multiply
    388,946.57x = 536,746.28 × 210,098.57
  4. Step 4: Simplify right side
    388,946.57x = 112,769,625,880.82
  5. Step 5: Solve for x
    x = 112,769,625,880.82/388,946.57
  6. Step 6: Final answer
    x = 289,936.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.