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Finding the Fourth Proportional to 528,095.65, 792,143.48 and 243,785.65

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Solution

The fourth proportional to 528,095.65, 792,143.48 and 243,785.65 is: 365,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,095.65 : 792,143.48 = 243,785.65 : x
  2. Step 2: Convert to fraction form
    528,095.65/792,143.48 = 243,785.65/x
  3. Step 3: Cross multiply
    528,095.65x = 792,143.48 × 243,785.65
  4. Step 4: Simplify right side
    528,095.65x = 193,113,213,165.06
  5. Step 5: Solve for x
    x = 193,113,213,165.06/528,095.65
  6. Step 6: Final answer
    x = 365,678.48

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Half scale
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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.