Home / 679,938.30-1,019,907.45-606,455.10

Finding the Fourth Proportional to 679,938.30, 1,019,907.45 and 606,455.10

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Solution

The fourth proportional to 679,938.30, 1,019,907.45 and 606,455.10 is: 909,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,938.30 : 1,019,907.45 = 606,455.10 : x
  2. Step 2: Convert to fraction form
    679,938.30/1,019,907.45 = 606,455.10/x
  3. Step 3: Cross multiply
    679,938.30x = 1,019,907.45 × 606,455.10
  4. Step 4: Simplify right side
    679,938.30x = 618,528,074,580.50
  5. Step 5: Solve for x
    x = 618,528,074,580.50/679,938.30
  6. Step 6: Final answer
    x = 909,682.65

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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.