Home / 819,319.18-1,130,655.78-456,746.02

Finding the Fourth Proportional to 819,319.18, 1,130,655.78 and 456,746.02

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Solution

The fourth proportional to 819,319.18, 1,130,655.78 and 456,746.02 is: 630,306.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,319.18 : 1,130,655.78 = 456,746.02 : x
  2. Step 2: Convert to fraction form
    819,319.18/1,130,655.78 = 456,746.02/x
  3. Step 3: Cross multiply
    819,319.18x = 1,130,655.78 × 456,746.02
  4. Step 4: Simplify right side
    819,319.18x = 516,422,527,505.00
  5. Step 5: Solve for x
    x = 516,422,527,505.00/819,319.18
  6. Step 6: Final answer
    x = 630,306.89

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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.