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Finding the Fourth Proportional to 528,075.65, 792,113.48 and 243,765.65

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Solution

The fourth proportional to 528,075.65, 792,113.48 and 243,765.65 is: 365,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,075.65 : 792,113.48 = 243,765.65 : x
  2. Step 2: Convert to fraction form
    528,075.65/792,113.48 = 243,765.65/x
  3. Step 3: Cross multiply
    528,075.65x = 792,113.48 × 243,765.65
  4. Step 4: Simplify right side
    528,075.65x = 193,090,057,325.96
  5. Step 5: Solve for x
    x = 193,090,057,325.96/528,075.65
  6. Step 6: Final answer
    x = 365,648.48

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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.