Home / 370,602.47-511,417.98-209,454.18

Finding the Fourth Proportional to 370,602.47, 511,417.98 and 209,454.18

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Solution

The fourth proportional to 370,602.47, 511,417.98 and 209,454.18 is: 289,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,602.47 : 511,417.98 = 209,454.18 : x
  2. Step 2: Convert to fraction form
    370,602.47/511,417.98 = 209,454.18/x
  3. Step 3: Cross multiply
    370,602.47x = 511,417.98 × 209,454.18
  4. Step 4: Simplify right side
    370,602.47x = 107,118,633,638.16
  5. Step 5: Solve for x
    x = 107,118,633,638.16/370,602.47
  6. Step 6: Final answer
    x = 289,039.18

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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.