Home / 628,041.20-942,061.80-559,228.40

Finding the Fourth Proportional to 628,041.20, 942,061.80 and 559,228.40

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Solution

The fourth proportional to 628,041.20, 942,061.80 and 559,228.40 is: 838,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,041.20 : 942,061.80 = 559,228.40 : x
  2. Step 2: Convert to fraction form
    628,041.20/942,061.80 = 559,228.40/x
  3. Step 3: Cross multiply
    628,041.20x = 942,061.80 × 559,228.40
  4. Step 4: Simplify right side
    628,041.20x = 526,827,713,115.12
  5. Step 5: Solve for x
    x = 526,827,713,115.12/628,041.20
  6. Step 6: Final answer
    x = 838,842.60

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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.