Home / 768,419.02-1,059,432.29-630,088.23

Finding the Fourth Proportional to 768,419.02, 1,059,432.29 and 630,088.23

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Solution

The fourth proportional to 768,419.02, 1,059,432.29 and 630,088.23 is: 868,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,419.02 : 1,059,432.29 = 630,088.23 : x
  2. Step 2: Convert to fraction form
    768,419.02/1,059,432.29 = 630,088.23/x
  3. Step 3: Cross multiply
    768,419.02x = 1,059,432.29 × 630,088.23
  4. Step 4: Simplify right side
    768,419.02x = 667,535,816,410.95
  5. Step 5: Solve for x
    x = 667,535,816,410.95/768,419.02
  6. Step 6: Final answer
    x = 868,713.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.