Home / 916,547.20-1,374,268.48-411,016.80

Finding the Fourth Proportional to 916,547.20, 1,374,268.48 and 411,016.80

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Solution

The fourth proportional to 916,547.20, 1,374,268.48 and 411,016.80 is: 616,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,547.20 : 1,374,268.48 = 411,016.80 : x
  2. Step 2: Convert to fraction form
    916,547.20/1,374,268.48 = 411,016.80/x
  3. Step 3: Cross multiply
    916,547.20x = 1,374,268.48 × 411,016.80
  4. Step 4: Simplify right side
    916,547.20x = 564,847,432,990.46
  5. Step 5: Solve for x
    x = 564,847,432,990.46/916,547.20
  6. Step 6: Final answer
    x = 616,277.52

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Double scale
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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.