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Finding the Fourth Proportional to 525,795.40, 788,693.10 and 376,496.20

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Solution

The fourth proportional to 525,795.40, 788,693.10 and 376,496.20 is: 564,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,795.40 : 788,693.10 = 376,496.20 : x
  2. Step 2: Convert to fraction form
    525,795.40/788,693.10 = 376,496.20/x
  3. Step 3: Cross multiply
    525,795.40x = 788,693.10 × 376,496.20
  4. Step 4: Simplify right side
    525,795.40x = 296,939,955,116.22
  5. Step 5: Solve for x
    x = 296,939,955,116.22/525,795.40
  6. Step 6: Final answer
    x = 564,744.30

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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.