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Finding the Fourth Proportional to 702,820.10, 1,054,230.15 and 348,526.10

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Solution

The fourth proportional to 702,820.10, 1,054,230.15 and 348,526.10 is: 522,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,820.10 : 1,054,230.15 = 348,526.10 : x
  2. Step 2: Convert to fraction form
    702,820.10/1,054,230.15 = 348,526.10/x
  3. Step 3: Cross multiply
    702,820.10x = 1,054,230.15 × 348,526.10
  4. Step 4: Simplify right side
    702,820.10x = 367,426,722,681.92
  5. Step 5: Solve for x
    x = 367,426,722,681.92/702,820.10
  6. Step 6: Final answer
    x = 522,789.15

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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.