Home / 877,664.10-1,316,496.15-456,885.30

Finding the Fourth Proportional to 877,664.10, 1,316,496.15 and 456,885.30

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Solution

The fourth proportional to 877,664.10, 1,316,496.15 and 456,885.30 is: 685,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,664.10 : 1,316,496.15 = 456,885.30 : x
  2. Step 2: Convert to fraction form
    877,664.10/1,316,496.15 = 456,885.30/x
  3. Step 3: Cross multiply
    877,664.10x = 1,316,496.15 × 456,885.30
  4. Step 4: Simplify right side
    877,664.10x = 601,487,738,441.60
  5. Step 5: Solve for x
    x = 601,487,738,441.60/877,664.10
  6. Step 6: Final answer
    x = 685,327.95

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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.