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Finding the Fourth Proportional to 616,321,801.60, 924,482,702.40 and 207,241,993.60

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Solution

The fourth proportional to 616,321,801.60, 924,482,702.40 and 207,241,993.60 is: 310,862,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,321,801.60 : 924,482,702.40 = 207,241,993.60 : x
  2. Step 2: Convert to fraction form
    616,321,801.60/924,482,702.40 = 207,241,993.60/x
  3. Step 3: Cross multiply
    616,321,801.60x = 924,482,702.40 × 207,241,993.60
  4. Step 4: Simplify right side
    616,321,801.60x = 191,591,638,294,091,488
  5. Step 5: Solve for x
    x = 191,591,638,294,091,488/616,321,801.60
  6. Step 6: Final answer
    x = 310,862,990.40

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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.