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Finding the Fourth Proportional to 877,567.88, 1,316,352 and 316,602.20

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Solution

The fourth proportional to 877,567.88, 1,316,352 and 316,602.20 is: 474,903.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,567.88 : 1,316,352 = 316,602.20 : x
  2. Step 2: Convert to fraction form
    877,567.88/1,316,352 = 316,602.20/x
  3. Step 3: Cross multiply
    877,567.88x = 1,316,352 × 316,602.20
  4. Step 4: Simplify right side
    877,567.88x = 416,759,939,174.40
  5. Step 5: Solve for x
    x = 416,759,939,174.40/877,567.88
  6. Step 6: Final answer
    x = 474,903.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.