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Finding the Fourth Proportional to 528,037.30, 792,055.95 and 440,557.30

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Solution

The fourth proportional to 528,037.30, 792,055.95 and 440,557.30 is: 660,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.30 : 792,055.95 = 440,557.30 : x
  2. Step 2: Convert to fraction form
    528,037.30/792,055.95 = 440,557.30/x
  3. Step 3: Cross multiply
    528,037.30x = 792,055.95 × 440,557.30
  4. Step 4: Simplify right side
    528,037.30x = 348,946,030,780.94
  5. Step 5: Solve for x
    x = 348,946,030,780.94/528,037.30
  6. Step 6: Final answer
    x = 660,835.95

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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.