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Finding the Fourth Proportional to 519,602.49, 716,974.47 and 315,547.02

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Solution

The fourth proportional to 519,602.49, 716,974.47 and 315,547.02 is: 435,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,602.49 : 716,974.47 = 315,547.02 : x
  2. Step 2: Convert to fraction form
    519,602.49/716,974.47 = 315,547.02/x
  3. Step 3: Cross multiply
    519,602.49x = 716,974.47 × 315,547.02
  4. Step 4: Simplify right side
    519,602.49x = 226,239,157,424.58
  5. Step 5: Solve for x
    x = 226,239,157,424.58/519,602.49
  6. Step 6: Final answer
    x = 435,408.15

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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.