Home / 921,352.06-1,271,448.56-513,444.92

Finding the Fourth Proportional to 921,352.06, 1,271,448.56 and 513,444.92

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Solution

The fourth proportional to 921,352.06, 1,271,448.56 and 513,444.92 is: 708,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,352.06 : 1,271,448.56 = 513,444.92 : x
  2. Step 2: Convert to fraction form
    921,352.06/1,271,448.56 = 513,444.92/x
  3. Step 3: Cross multiply
    921,352.06x = 1,271,448.56 × 513,444.92
  4. Step 4: Simplify right side
    921,352.06x = 652,818,804,173.32
  5. Step 5: Solve for x
    x = 652,818,804,173.32/921,352.06
  6. Step 6: Final answer
    x = 708,544.36

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Double scale
Find fourth proportional to 921,353.06, 1,271,449.94 and 513,445.92
Similar ratio
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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.