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Finding the Fourth Proportional to 528,037.40, 792,056.10 and 191,077.40

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Solution

The fourth proportional to 528,037.40, 792,056.10 and 191,077.40 is: 286,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.40 : 792,056.10 = 191,077.40 : x
  2. Step 2: Convert to fraction form
    528,037.40/792,056.10 = 191,077.40/x
  3. Step 3: Cross multiply
    528,037.40x = 792,056.10 × 191,077.40
  4. Step 4: Simplify right side
    528,037.40x = 151,344,020,242.14
  5. Step 5: Solve for x
    x = 151,344,020,242.14/528,037.40
  6. Step 6: Final answer
    x = 286,616.10

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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.