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Finding the Fourth Proportional to 624,073.30, 936,109.95 and 372,130.90

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Solution

The fourth proportional to 624,073.30, 936,109.95 and 372,130.90 is: 558,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,073.30 : 936,109.95 = 372,130.90 : x
  2. Step 2: Convert to fraction form
    624,073.30/936,109.95 = 372,130.90/x
  3. Step 3: Cross multiply
    624,073.30x = 936,109.95 × 372,130.90
  4. Step 4: Simplify right side
    624,073.30x = 348,355,438,192.46
  5. Step 5: Solve for x
    x = 348,355,438,192.46/624,073.30
  6. Step 6: Final answer
    x = 558,196.35

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Double scale
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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.