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Finding the Fourth Proportional to 630,533.68, 870,119.40 and 344,053.84

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Solution

The fourth proportional to 630,533.68, 870,119.40 and 344,053.84 is: 474,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,533.68 : 870,119.40 = 344,053.84 : x
  2. Step 2: Convert to fraction form
    630,533.68/870,119.40 = 344,053.84/x
  3. Step 3: Cross multiply
    630,533.68x = 870,119.40 × 344,053.84
  4. Step 4: Simplify right side
    630,533.68x = 299,367,920,828.50
  5. Step 5: Solve for x
    x = 299,367,920,828.50/630,533.68
  6. Step 6: Final answer
    x = 474,784.98

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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.