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Finding the Fourth Proportional to 631,353.30, 947,029.95 and 631,353.30

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Solution

The fourth proportional to 631,353.30, 947,029.95 and 631,353.30 is: 947,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,353.30 : 947,029.95 = 631,353.30 : x
  2. Step 2: Convert to fraction form
    631,353.30/947,029.95 = 631,353.30/x
  3. Step 3: Cross multiply
    631,353.30x = 947,029.95 × 631,353.30
  4. Step 4: Simplify right side
    631,353.30x = 597,910,484,131.34
  5. Step 5: Solve for x
    x = 597,910,484,131.34/631,353.30
  6. Step 6: Final answer
    x = 947,029.95

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Half scale
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Double scale
Find fourth proportional to 631,354.30, 947,031.45 and 631,354.30
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.