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Finding the Fourth Proportional to 720,960.30, 1,081,440.45 and 602,862.30

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Solution

The fourth proportional to 720,960.30, 1,081,440.45 and 602,862.30 is: 904,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,960.30 : 1,081,440.45 = 602,862.30 : x
  2. Step 2: Convert to fraction form
    720,960.30/1,081,440.45 = 602,862.30/x
  3. Step 3: Cross multiply
    720,960.30x = 1,081,440.45 × 602,862.30
  4. Step 4: Simplify right side
    720,960.30x = 651,959,677,000.04
  5. Step 5: Solve for x
    x = 651,959,677,000.04/720,960.30
  6. Step 6: Final answer
    x = 904,293.45

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Similar ratio
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1.5x scale

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.