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Finding the Fourth Proportional to 435,075.66, 652,587.12 and 258,705

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Solution

The fourth proportional to 435,075.66, 652,587.12 and 258,705 is: 388,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,075.66 : 652,587.12 = 258,705 : x
  2. Step 2: Convert to fraction form
    435,075.66/652,587.12 = 258,705/x
  3. Step 3: Cross multiply
    435,075.66x = 652,587.12 × 258,705
  4. Step 4: Simplify right side
    435,075.66x = 168,827,550,879.60
  5. Step 5: Solve for x
    x = 168,827,550,879.60/435,075.66
  6. Step 6: Final answer
    x = 388,041.82

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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.