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Finding the Fourth Proportional to 616,280.40, 924,420.60 and 574,808.40

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Solution

The fourth proportional to 616,280.40, 924,420.60 and 574,808.40 is: 862,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,280.40 : 924,420.60 = 574,808.40 : x
  2. Step 2: Convert to fraction form
    616,280.40/924,420.60 = 574,808.40/x
  3. Step 3: Cross multiply
    616,280.40x = 924,420.60 × 574,808.40
  4. Step 4: Simplify right side
    616,280.40x = 531,364,726,013.04
  5. Step 5: Solve for x
    x = 531,364,726,013.04/616,280.40
  6. Step 6: Final answer
    x = 862,212.60

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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.