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Finding the Fourth Proportional to 583,699.80, 875,549.70 and 209,674.20

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Solution

The fourth proportional to 583,699.80, 875,549.70 and 209,674.20 is: 314,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,699.80 : 875,549.70 = 209,674.20 : x
  2. Step 2: Convert to fraction form
    583,699.80/875,549.70 = 209,674.20/x
  3. Step 3: Cross multiply
    583,699.80x = 875,549.70 × 209,674.20
  4. Step 4: Simplify right side
    583,699.80x = 183,580,182,907.74
  5. Step 5: Solve for x
    x = 183,580,182,907.74/583,699.80
  6. Step 6: Final answer
    x = 314,511.30

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Half scale
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Double scale
Find fourth proportional to 583,700.80, 875,551.20 and 209,675.20
Similar ratio
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1.5x scale

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.