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Finding the Fourth Proportional to 570,528.36, 787,373.58 and 315,903.24

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Solution

The fourth proportional to 570,528.36, 787,373.58 and 315,903.24 is: 435,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,528.36 : 787,373.58 = 315,903.24 : x
  2. Step 2: Convert to fraction form
    570,528.36/787,373.58 = 315,903.24/x
  3. Step 3: Cross multiply
    570,528.36x = 787,373.58 × 315,903.24
  4. Step 4: Simplify right side
    570,528.36x = 248,733,865,012.40
  5. Step 5: Solve for x
    x = 248,733,865,012.40/570,528.36
  6. Step 6: Final answer
    x = 435,971.08

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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.