Home / 649,723.60-974,585.40-624,840.40

Finding the Fourth Proportional to 649,723.60, 974,585.40 and 624,840.40

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Solution

The fourth proportional to 649,723.60, 974,585.40 and 624,840.40 is: 937,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,723.60 : 974,585.40 = 624,840.40 : x
  2. Step 2: Convert to fraction form
    649,723.60/974,585.40 = 624,840.40/x
  3. Step 3: Cross multiply
    649,723.60x = 974,585.40 × 624,840.40
  4. Step 4: Simplify right side
    649,723.60x = 608,960,331,170.16
  5. Step 5: Solve for x
    x = 608,960,331,170.16/649,723.60
  6. Step 6: Final answer
    x = 937,260.60

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Half scale
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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.