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Finding the Fourth Proportional to 617,295.40, 926,031.81 and 190,864.45

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Solution

The fourth proportional to 617,295.40, 926,031.81 and 190,864.45 is: 286,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,295.40 : 926,031.81 = 190,864.45 : x
  2. Step 2: Convert to fraction form
    617,295.40/926,031.81 = 190,864.45/x
  3. Step 3: Cross multiply
    617,295.40x = 926,031.81 × 190,864.45
  4. Step 4: Simplify right side
    617,295.40x = 176,746,552,098.16
  5. Step 5: Solve for x
    x = 176,746,552,098.16/617,295.40
  6. Step 6: Final answer
    x = 286,324.10

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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.