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Finding the Fourth Proportional to 642,706.16, 958,313.06 and 625,050.32

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Solution

The fourth proportional to 642,706.16, 958,313.06 and 625,050.32 is: 931,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,706.16 : 958,313.06 = 625,050.32 : x
  2. Step 2: Convert to fraction form
    642,706.16/958,313.06 = 625,050.32/x
  3. Step 3: Cross multiply
    642,706.16x = 958,313.06 × 625,050.32
  4. Step 4: Simplify right side
    642,706.16x = 598,993,884,813.18
  5. Step 5: Solve for x
    x = 598,993,884,813.18/642,706.16
  6. Step 6: Final answer
    x = 931,987.15

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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.