Home / 926,280.40-1,389,420.60-768,816.40

Finding the Fourth Proportional to 926,280.40, 1,389,420.60 and 768,816.40

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Solution

The fourth proportional to 926,280.40, 1,389,420.60 and 768,816.40 is: 1,153,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,280.40 : 1,389,420.60 = 768,816.40 : x
  2. Step 2: Convert to fraction form
    926,280.40/1,389,420.60 = 768,816.40/x
  3. Step 3: Cross multiply
    926,280.40x = 1,389,420.60 × 768,816.40
  4. Step 4: Simplify right side
    926,280.40x = 1,068,209,343,777.84
  5. Step 5: Solve for x
    x = 1,068,209,343,777.84/926,280.40
  6. Step 6: Final answer
    x = 1,153,224.60

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Half scale
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Double scale
Find fourth proportional to 926,281.40, 1,389,422.10 and 768,817.40
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.