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Finding the Fourth Proportional to 877,425.84, 1,210,847.88 and 475,017.84

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Solution

The fourth proportional to 877,425.84, 1,210,847.88 and 475,017.84 is: 655,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,425.84 : 1,210,847.88 = 475,017.84 : x
  2. Step 2: Convert to fraction form
    877,425.84/1,210,847.88 = 475,017.84/x
  3. Step 3: Cross multiply
    877,425.84x = 1,210,847.88 × 475,017.84
  4. Step 4: Simplify right side
    877,425.84x = 575,174,344,526.18
  5. Step 5: Solve for x
    x = 575,174,344,526.18/877,425.84
  6. Step 6: Final answer
    x = 655,524.74

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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.