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Finding the Fourth Proportional to 702,425.70, 1,053,638.55 and 702,425.70

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Solution

The fourth proportional to 702,425.70, 1,053,638.55 and 702,425.70 is: 1,053,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,425.70 : 1,053,638.55 = 702,425.70 : x
  2. Step 2: Convert to fraction form
    702,425.70/1,053,638.55 = 702,425.70/x
  3. Step 3: Cross multiply
    702,425.70x = 1,053,638.55 × 702,425.70
  4. Step 4: Simplify right side
    702,425.70x = 740,102,796,030.74
  5. Step 5: Solve for x
    x = 740,102,796,030.74/702,425.70
  6. Step 6: Final answer
    x = 1,053,638.55

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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.