Home / 631,541.40-947,312.10-579,931.80

Finding the Fourth Proportional to 631,541.40, 947,312.10 and 579,931.80

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Solution

The fourth proportional to 631,541.40, 947,312.10 and 579,931.80 is: 869,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,541.40 : 947,312.10 = 579,931.80 : x
  2. Step 2: Convert to fraction form
    631,541.40/947,312.10 = 579,931.80/x
  3. Step 3: Cross multiply
    631,541.40x = 947,312.10 × 579,931.80
  4. Step 4: Simplify right side
    631,541.40x = 549,376,411,314.78
  5. Step 5: Solve for x
    x = 549,376,411,314.78/631,541.40
  6. Step 6: Final answer
    x = 869,897.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.