Home / 530,743.62-732,440.16-289,036.38

Finding the Fourth Proportional to 530,743.62, 732,440.16 and 289,036.38

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Solution

The fourth proportional to 530,743.62, 732,440.16 and 289,036.38 is: 398,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,743.62 : 732,440.16 = 289,036.38 : x
  2. Step 2: Convert to fraction form
    530,743.62/732,440.16 = 289,036.38/x
  3. Step 3: Cross multiply
    530,743.62x = 732,440.16 × 289,036.38
  4. Step 4: Simplify right side
    530,743.62x = 211,701,852,413.02
  5. Step 5: Solve for x
    x = 211,701,852,413.02/530,743.62
  6. Step 6: Final answer
    x = 398,877.81

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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.