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Finding the Fourth Proportional to 528,051.40, 792,077.10 and 154,074.40

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Solution

The fourth proportional to 528,051.40, 792,077.10 and 154,074.40 is: 231,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051.40 : 792,077.10 = 154,074.40 : x
  2. Step 2: Convert to fraction form
    528,051.40/792,077.10 = 154,074.40/x
  3. Step 3: Cross multiply
    528,051.40x = 792,077.10 × 154,074.40
  4. Step 4: Simplify right side
    528,051.40x = 122,038,803,936.24
  5. Step 5: Solve for x
    x = 122,038,803,936.24/528,051.40
  6. Step 6: Final answer
    x = 231,111.60

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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.