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Finding the Fourth Proportional to 720,025.40, 1,080,038.10 and 602,802.20

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Solution

The fourth proportional to 720,025.40, 1,080,038.10 and 602,802.20 is: 904,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,025.40 : 1,080,038.10 = 602,802.20 : x
  2. Step 2: Convert to fraction form
    720,025.40/1,080,038.10 = 602,802.20/x
  3. Step 3: Cross multiply
    720,025.40x = 1,080,038.10 × 602,802.20
  4. Step 4: Simplify right side
    720,025.40x = 651,049,342,763.82
  5. Step 5: Solve for x
    x = 651,049,342,763.82/720,025.40
  6. Step 6: Final answer
    x = 904,203.30

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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.