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Finding the Fourth Proportional to 465,547.20, 697,802.40 and 240,820.80

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Solution

The fourth proportional to 465,547.20, 697,802.40 and 240,820.80 is: 360,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,547.20 : 697,802.40 = 240,820.80 : x
  2. Step 2: Convert to fraction form
    465,547.20/697,802.40 = 240,820.80/x
  3. Step 3: Cross multiply
    465,547.20x = 697,802.40 × 240,820.80
  4. Step 4: Simplify right side
    465,547.20x = 168,045,332,209.92
  5. Step 5: Solve for x
    x = 168,045,332,209.92/465,547.20
  6. Step 6: Final answer
    x = 360,963.04

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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.