Home / 651,867.60-977,801.40-625,623.60

Finding the Fourth Proportional to 651,867.60, 977,801.40 and 625,623.60

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Solution

The fourth proportional to 651,867.60, 977,801.40 and 625,623.60 is: 938,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,867.60 : 977,801.40 = 625,623.60 : x
  2. Step 2: Convert to fraction form
    651,867.60/977,801.40 = 625,623.60/x
  3. Step 3: Cross multiply
    651,867.60x = 977,801.40 × 625,623.60
  4. Step 4: Simplify right side
    651,867.60x = 611,735,631,953.04
  5. Step 5: Solve for x
    x = 611,735,631,953.04/651,867.60
  6. Step 6: Final answer
    x = 938,435.40

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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.