Home / 921,547.56-1,271,690.58-513,693.80

Finding the Fourth Proportional to 921,547.56, 1,271,690.58 and 513,693.80

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Solution

The fourth proportional to 921,547.56, 1,271,690.58 and 513,693.80 is: 708,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,547.56 : 1,271,690.58 = 513,693.80 : x
  2. Step 2: Convert to fraction form
    921,547.56/1,271,690.58 = 513,693.80/x
  3. Step 3: Cross multiply
    921,547.56x = 1,271,690.58 × 513,693.80
  4. Step 4: Simplify right side
    921,547.56x = 653,259,566,464.40
  5. Step 5: Solve for x
    x = 653,259,566,464.40/921,547.56
  6. Step 6: Final answer
    x = 708,872.33

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Double scale
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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.