Home / 623,376.57-859,860.76-432,320.25

Finding the Fourth Proportional to 623,376.57, 859,860.76 and 432,320.25

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Solution

The fourth proportional to 623,376.57, 859,860.76 and 432,320.25 is: 596,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,376.57 : 859,860.76 = 432,320.25 : x
  2. Step 2: Convert to fraction form
    623,376.57/859,860.76 = 432,320.25/x
  3. Step 3: Cross multiply
    623,376.57x = 859,860.76 × 432,320.25
  4. Step 4: Simplify right side
    623,376.57x = 371,735,218,728.39
  5. Step 5: Solve for x
    x = 371,735,218,728.39/623,376.57
  6. Step 6: Final answer
    x = 596,325.30

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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.