Home / 983,988.40-1,357,906.45-570,605.30

Finding the Fourth Proportional to 983,988.40, 1,357,906.45 and 570,605.30

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Solution

The fourth proportional to 983,988.40, 1,357,906.45 and 570,605.30 is: 787,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,988.40 : 1,357,906.45 = 570,605.30 : x
  2. Step 2: Convert to fraction form
    983,988.40/1,357,906.45 = 570,605.30/x
  3. Step 3: Cross multiply
    983,988.40x = 1,357,906.45 × 570,605.30
  4. Step 4: Simplify right side
    983,988.40x = 774,828,615,847.67
  5. Step 5: Solve for x
    x = 774,828,615,847.67/983,988.40
  6. Step 6: Final answer
    x = 787,436.74

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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.