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Finding the Fourth Proportional to 484,328.65, 726,603.54 and 147,417.05

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Solution

The fourth proportional to 484,328.65, 726,603.54 and 147,417.05 is: 221,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,328.65 : 726,603.54 = 147,417.05 : x
  2. Step 2: Convert to fraction form
    484,328.65/726,603.54 = 147,417.05/x
  3. Step 3: Cross multiply
    484,328.65x = 726,603.54 × 147,417.05
  4. Step 4: Simplify right side
    484,328.65x = 107,113,750,386.36
  5. Step 5: Solve for x
    x = 107,113,750,386.36/484,328.65
  6. Step 6: Final answer
    x = 221,159.23

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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.