Home / 623,557.02-859,934.80-408,619.02

Finding the Fourth Proportional to 623,557.02, 859,934.80 and 408,619.02

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Solution

The fourth proportional to 623,557.02, 859,934.80 and 408,619.02 is: 563,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,557.02 : 859,934.80 = 408,619.02 : x
  2. Step 2: Convert to fraction form
    623,557.02/859,934.80 = 408,619.02/x
  3. Step 3: Cross multiply
    623,557.02x = 859,934.80 × 408,619.02
  4. Step 4: Simplify right side
    623,557.02x = 351,385,715,239.90
  5. Step 5: Solve for x
    x = 351,385,715,239.90/623,557.02
  6. Step 6: Final answer
    x = 563,518.18

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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.