Home / 722,113.53-996,547.77-399,823.59

Finding the Fourth Proportional to 722,113.53, 996,547.77 and 399,823.59

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Solution

The fourth proportional to 722,113.53, 996,547.77 and 399,823.59 is: 551,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,113.53 : 996,547.77 = 399,823.59 : x
  2. Step 2: Convert to fraction form
    722,113.53/996,547.77 = 399,823.59/x
  3. Step 3: Cross multiply
    722,113.53x = 996,547.77 × 399,823.59
  4. Step 4: Simplify right side
    722,113.53x = 398,443,307,007.89
  5. Step 5: Solve for x
    x = 398,443,307,007.89/722,113.53
  6. Step 6: Final answer
    x = 551,773.77

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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.