Home / 623,975,507.60-935,963,261.40-442,576,979.60

Finding the Fourth Proportional to 623,975,507.60, 935,963,261.40 and 442,576,979.60

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Solution

The fourth proportional to 623,975,507.60, 935,963,261.40 and 442,576,979.60 is: 663,865,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,975,507.60 : 935,963,261.40 = 442,576,979.60 : x
  2. Step 2: Convert to fraction form
    623,975,507.60/935,963,261.40 = 442,576,979.60/x
  3. Step 3: Cross multiply
    623,975,507.60x = 935,963,261.40 × 442,576,979.60
  4. Step 4: Simplify right side
    623,975,507.60x = 414,235,793,246,977,280
  5. Step 5: Solve for x
    x = 414,235,793,246,977,280/623,975,507.60
  6. Step 6: Final answer
    x = 663,865,469.40

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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.