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Finding the Fourth Proportional to 630,784.04, 870,726.04 and 376,154.06

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Solution

The fourth proportional to 630,784.04, 870,726.04 and 376,154.06 is: 519,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,784.04 : 870,726.04 = 376,154.06 : x
  2. Step 2: Convert to fraction form
    630,784.04/870,726.04 = 376,154.06/x
  3. Step 3: Cross multiply
    630,784.04x = 870,726.04 × 376,154.06
  4. Step 4: Simplify right side
    630,784.04x = 327,527,129,799.71
  5. Step 5: Solve for x
    x = 327,527,129,799.71/630,784.04
  6. Step 6: Final answer
    x = 519,238.14

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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.