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Finding the Fourth Proportional to 527,905.60, 791,858.40 and 497,492.80

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Solution

The fourth proportional to 527,905.60, 791,858.40 and 497,492.80 is: 746,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,905.60 : 791,858.40 = 497,492.80 : x
  2. Step 2: Convert to fraction form
    527,905.60/791,858.40 = 497,492.80/x
  3. Step 3: Cross multiply
    527,905.60x = 791,858.40 × 497,492.80
  4. Step 4: Simplify right side
    527,905.60x = 393,943,852,619.52
  5. Step 5: Solve for x
    x = 393,943,852,619.52/527,905.60
  6. Step 6: Final answer
    x = 746,239.20

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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.