Home / 637,743.04-880,052.14-396,020.40

Finding the Fourth Proportional to 637,743.04, 880,052.14 and 396,020.40

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Solution

The fourth proportional to 637,743.04, 880,052.14 and 396,020.40 is: 546,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,743.04 : 880,052.14 = 396,020.40 : x
  2. Step 2: Convert to fraction form
    637,743.04/880,052.14 = 396,020.40/x
  3. Step 3: Cross multiply
    637,743.04x = 880,052.14 × 396,020.40
  4. Step 4: Simplify right side
    637,743.04x = 348,518,600,503.66
  5. Step 5: Solve for x
    x = 348,518,600,503.66/637,743.04
  6. Step 6: Final answer
    x = 546,487.50

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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.