Home / 642,637.38-958,210.72-624,981.50

Finding the Fourth Proportional to 642,637.38, 958,210.72 and 624,981.50

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Solution

The fourth proportional to 642,637.38, 958,210.72 and 624,981.50 is: 931,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,637.38 : 958,210.72 = 624,981.50 : x
  2. Step 2: Convert to fraction form
    642,637.38/958,210.72 = 624,981.50/x
  3. Step 3: Cross multiply
    642,637.38x = 958,210.72 × 624,981.50
  4. Step 4: Simplify right side
    642,637.38x = 598,863,970,341.46
  5. Step 5: Solve for x
    x = 598,863,970,341.46/642,637.38
  6. Step 6: Final answer
    x = 931,884.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.