Home / 1,712,136.78-2,566,006.56-645,908.40

Finding the Fourth Proportional to 1,712,136.78, 2,566,006.56 and 645,908.40

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Solution

The fourth proportional to 1,712,136.78, 2,566,006.56 and 645,908.40 is: 968,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712,136.78 : 2,566,006.56 = 645,908.40 : x
  2. Step 2: Convert to fraction form
    1,712,136.78/2,566,006.56 = 645,908.40/x
  3. Step 3: Cross multiply
    1,712,136.78x = 2,566,006.56 × 645,908.40
  4. Step 4: Simplify right side
    1,712,136.78x = 1,657,405,191,559.10
  5. Step 5: Solve for x
    x = 1,657,405,191,559.10/1,712,136.78
  6. Step 6: Final answer
    x = 968,033.17

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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.