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Finding the Fourth Proportional to 525,210.76, 723,779.56 and 381,743.56

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Solution

The fourth proportional to 525,210.76, 723,779.56 and 381,743.56 is: 526,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,210.76 : 723,779.56 = 381,743.56 : x
  2. Step 2: Convert to fraction form
    525,210.76/723,779.56 = 381,743.56/x
  3. Step 3: Cross multiply
    525,210.76x = 723,779.56 × 381,743.56
  4. Step 4: Simplify right side
    525,210.76x = 276,298,185,889.63
  5. Step 5: Solve for x
    x = 276,298,185,889.63/525,210.76
  6. Step 6: Final answer
    x = 526,071.07

Related Problems

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.