Home / 679,931.40-1,019,897.10-325,637.40

Finding the Fourth Proportional to 679,931.40, 1,019,897.10 and 325,637.40

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Solution

The fourth proportional to 679,931.40, 1,019,897.10 and 325,637.40 is: 488,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,931.40 : 1,019,897.10 = 325,637.40 : x
  2. Step 2: Convert to fraction form
    679,931.40/1,019,897.10 = 325,637.40/x
  3. Step 3: Cross multiply
    679,931.40x = 1,019,897.10 × 325,637.40
  4. Step 4: Simplify right side
    679,931.40x = 332,116,639,911.54
  5. Step 5: Solve for x
    x = 332,116,639,911.54/679,931.40
  6. Step 6: Final answer
    x = 488,456.10

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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.