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Finding the Fourth Proportional to 529,200.40, 730,275.60 and 314,334.76

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Solution

The fourth proportional to 529,200.40, 730,275.60 and 314,334.76 is: 433,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,200.40 : 730,275.60 = 314,334.76 : x
  2. Step 2: Convert to fraction form
    529,200.40/730,275.60 = 314,334.76/x
  3. Step 3: Cross multiply
    529,200.40x = 730,275.60 × 314,334.76
  4. Step 4: Simplify right side
    529,200.40x = 229,551,005,459.86
  5. Step 5: Solve for x
    x = 229,551,005,459.86/529,200.40
  6. Step 6: Final answer
    x = 433,769.52

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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.