Home / 771,254.60-1,156,881.90-519,312.20

Finding the Fourth Proportional to 771,254.60, 1,156,881.90 and 519,312.20

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Solution

The fourth proportional to 771,254.60, 1,156,881.90 and 519,312.20 is: 778,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,254.60 : 1,156,881.90 = 519,312.20 : x
  2. Step 2: Convert to fraction form
    771,254.60/1,156,881.90 = 519,312.20/x
  3. Step 3: Cross multiply
    771,254.60x = 1,156,881.90 × 519,312.20
  4. Step 4: Simplify right side
    771,254.60x = 600,782,884,629.18
  5. Step 5: Solve for x
    x = 600,782,884,629.18/771,254.60
  6. Step 6: Final answer
    x = 778,968.30

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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.