Home / 1,124,823,842.60-1,687,235,763.90-397,812,554.60

Finding the Fourth Proportional to 1,124,823,842.60, 1,687,235,763.90 and 397,812,554.60

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Solution

The fourth proportional to 1,124,823,842.60, 1,687,235,763.90 and 397,812,554.60 is: 596,718,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,823,842.60 : 1,687,235,763.90 = 397,812,554.60 : x
  2. Step 2: Convert to fraction form
    1,124,823,842.60/1,687,235,763.90 = 397,812,554.60/x
  3. Step 3: Cross multiply
    1,124,823,842.60x = 1,687,235,763.90 × 397,812,554.60
  4. Step 4: Simplify right side
    1,124,823,842.60x = 671,203,569,449,541,504
  5. Step 5: Solve for x
    x = 671,203,569,449,541,504/1,124,823,842.60
  6. Step 6: Final answer
    x = 596,718,831.90

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Double scale
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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.