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Finding the Fourth Proportional to 693,510.57, 956,774.25 and 435,236.80

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Solution

The fourth proportional to 693,510.57, 956,774.25 and 435,236.80 is: 600,457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,510.57 : 956,774.25 = 435,236.80 : x
  2. Step 2: Convert to fraction form
    693,510.57/956,774.25 = 435,236.80/x
  3. Step 3: Cross multiply
    693,510.57x = 956,774.25 × 435,236.80
  4. Step 4: Simplify right side
    693,510.57x = 416,423,362,892.40
  5. Step 5: Solve for x
    x = 416,423,362,892.40/693,510.57
  6. Step 6: Final answer
    x = 600,457.12

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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.