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Finding the Fourth Proportional to 615,903.16, 918,161.58 and 606,196.98

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Solution

The fourth proportional to 615,903.16, 918,161.58 and 606,196.98 is: 903,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,903.16 : 918,161.58 = 606,196.98 : x
  2. Step 2: Convert to fraction form
    615,903.16/918,161.58 = 606,196.98/x
  3. Step 3: Cross multiply
    615,903.16x = 918,161.58 × 606,196.98
  4. Step 4: Simplify right side
    615,903.16x = 556,586,773,872.71
  5. Step 5: Solve for x
    x = 556,586,773,872.71/615,903.16
  6. Step 6: Final answer
    x = 903,692.03

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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.