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Finding the Fourth Proportional to 607,347.60, 911,021.40 and 574,688.40

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Solution

The fourth proportional to 607,347.60, 911,021.40 and 574,688.40 is: 862,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,347.60 : 911,021.40 = 574,688.40 : x
  2. Step 2: Convert to fraction form
    607,347.60/911,021.40 = 574,688.40/x
  3. Step 3: Cross multiply
    607,347.60x = 911,021.40 × 574,688.40
  4. Step 4: Simplify right side
    607,347.60x = 523,553,430,731.76
  5. Step 5: Solve for x
    x = 523,553,430,731.76/607,347.60
  6. Step 6: Final answer
    x = 862,032.60

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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.