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Finding the Fourth Proportional to 546,427.60, 819,641.40 and 525,432.40

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Solution

The fourth proportional to 546,427.60, 819,641.40 and 525,432.40 is: 788,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,427.60 : 819,641.40 = 525,432.40 : x
  2. Step 2: Convert to fraction form
    546,427.60/819,641.40 = 525,432.40/x
  3. Step 3: Cross multiply
    546,427.60x = 819,641.40 × 525,432.40
  4. Step 4: Simplify right side
    546,427.60x = 430,666,147,941.36
  5. Step 5: Solve for x
    x = 430,666,147,941.36/546,427.60
  6. Step 6: Final answer
    x = 788,148.60

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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.